BRIDGE GENERAL PLAN ESTIMATE OR PLANNING ESTIMATE X

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3 STATE OF CALIFORNIA - DEPARTMENT OF TRANSPORTATION BRIDGE GENERAL PLAN ESTIMATE OR PLANNING ESTIMATE X DPD-DSD-DIS (Rev 8/92) STRUCTURE BR. NO. RCVD BY ESTIMATING GROUP Wall Sta to Sta TBD IN TYPE DISTRICT CO RTE KP Type 5SWB Retaining Wall 3 SAC 80 LENGTH ' x AVE HT 5.70' = AREA 2280 SF OUT DESIGN SECTION DOKKEN QUANTITIES BY R. Griggs DATE 4/8/15 ESTIMATE NO STRUCTURES QUANTITIES CHK BY T. Osterkamp DATE 4/10/15 PRICED BY: RG AND ROADWORK CHG UNIT AND EA 2012 & 2013 COST INDEX CONTRACT ITEMS UNIT QUANTITY PRICE AMOUNT STRUCTURE EXCAVATION (RETAINING WALL) 701 $45.00 $31, STRUCTURE BACKFILL (RETAINING WALL) CY 470 $45.00 $21,167 $ STRUCTURAL CONCRETE, RETAINING WALL CY 286 $ $121, BAR REINFORCING STEEL (RETAINING WALL) LB 15,050 $1.15 $17, CONCRETE BARRIER TYPE 736S (MOD) LF 400 $ $40,000 SUB TOTAL $231,683 Notes: MOBILIZATION ( 10% ) $25,743 SUB TOTAL BRIDGE ITEMS $257,426 CONTINGENCIES (25%) $64,357 BRIDGE TOTAL $321,783 FOR BUDGET PURPOSES ONLY - SAY $330,000 COMMENTS $ / SF FM

4 STATE OF CALIFORNIA - DEPARTMENT OF TRANSPORTATION BRIDGE GENERAL PLAN ESTIMATE OR PLANNING ESTIMATE X DPD-DSD-DIS (Rev 8/92) STRUCTURE BR. NO. RCVD BY ESTIMATING GROUP Sound Wall 177 Only - Sta to Sta TBD IN TYPE DISTRICT CO RTE KP 16' Sound wall 3 SAC 80 LENGTH ' x AVE HT 11.00' = AREA 4400 SF OUT DESIGN SECTION DOKKEN QUANTITIES BY R. Griggs DATE 4/8/15 ESTIMATE NO STRUCTURES QUANTITIES CHK BY T. Osterkamp DATE 4/10/15 PRICED BY: RG AND ROADWORK CHG UNIT AND EA 2012 & 2013 COST INDEX CONTRACT ITEMS UNIT QUANTITY PRICE AMOUNT SOUND WALL (MASONRY BLOCK) SQFT 4,400 $20.00 $88,000 SUB TOTAL $88,000 Notes: Only cost of masonry block is included, barrier included with MOBILIZATION ( 10% ) $9,778 retaining wall. SUB TOTAL BRIDGE ITEMS $97,778 CONTINGENCIES (25%) $24,444 BRIDGE TOTAL $122,222 FOR BUDGET PURPOSES ONLY - SAY $130,000 COMMENTS $ / SF FM

5 STATE OF CALIFORNIA - DEPARTMENT OF TRANSPORTATION BRIDGE GENERAL PLAN ESTIMATE OR PLANNING ESTIMATE X DPD-DSD-DIS (Rev 8/92) STRUCTURE BR. NO. RCVD BY ESTIMATING GROUP Ret wall 188 TBD IN TYPE DISTRICT CO RTE KP Soldier Pile Retaining Wall 3 SAC 80 LENGTH ' x WIDTH 6.00' = AREA 2256 SF OUT DESIGN SECTION DOKKEN QUANTITIES BY R. Griggs DATE 4/8/15 ESTIMATE NO STRUCTURES QUANTITIES CHK BY T. Osterkamp DATE 4/10/15 PRICED BY: RG AND ROADWORK CHG UNIT AND EA 2012 & 2013 COST INDEX CONTRACT ITEMS UNIT QUANTITY PRICE AMOUNT STRUCTURE EXCAVATION (SOLDIER PILE WALL) CY 180 $ $23,335 $ STRUCTURE BACKFILL (RETAINING WALL) CY 90 $ $10, STEEL SOLDIER PILE (HP 12X84) LF 1,440 $ $180, STRUCTURAL CONCRETE, RETAINING WALL CY $ $ CABLE RAILING LF 376 $25.00 $9, CONCRETE BARRIER (TYPE 60D) LF 376 $85.00 $31,960 SUB TOTAL $255,465 Notes: Cost of Steel Soldier Pile (HP 12 x 84) includes MOBILIZATION ( 10% ) $28,385 the cost of drilling the hole. SUB TOTAL BRIDGE ITEMS $283,850 CONTINGENCIES (25%) $70,962 BRIDGE TOTAL $354,812 FOR BUDGET PURPOSES ONLY - SAY $360,000 COMMENTS $ / SF FM

6 STATE OF CALIFORNIA - DEPARTMENT OF TRANSPORTATION BRIDGE GENERAL PLAN ESTIMATE OR PLANNING ESTIMATE X DPD-DSD-DIS (Rev 8/92) STRUCTURE BR. NO. RCVD BY ESTIMATING GROUP Wall Sta to Sta TBD IN TYPE DISTRICT CO RTE KP Type 7B Retaining Wall 3 SAC 80 LENGTH ' x AVE HT 7.67' = AREA 4986 SF OUT DESIGN SECTION DOKKEN QUANTITIES BY R. Griggs DATE 4/8/15 ESTIMATE NO STRUCTURES QUANTITIES CHK BY T. Osterkamp DATE 4/10/15 PRICED BY: RG AND ROADWORK CHG UNIT AND EA 2012 & 2013 COST INDEX CONTRACT ITEMS UNIT QUANTITY PRICE AMOUNT STRUCTURE EXCAVATION (RETAINING WALL) CY 1,086 $45.00 $48, STRUCTURE BACKFILL (RETAINING WALL) CY 264 $45.00 $11, STRUCTURAL CONCRETE, RETAINING WALL CY 570 $ $242, BAR REINFORCING STEEL (RETAINING WALL) LB 37,772 $1.15 $43, CONCRETE BARRIER (TYPE 736) LF 650 $ $65,000 SUB TOTAL $411,402 Notes: MOBILIZATION ( 10% ) $45,711 SUB TOTAL BRIDGE ITEMS $457,114 CONTINGENCIES (25%) $114,278 BRIDGE TOTAL $571,392 FOR BUDGET PURPOSES ONLY - SAY $580,000 COMMENTS $ / SF FM

7 STATE OF CALIFORNIA - DEPARTMENT OF TRANSPORTATION BRIDGE GENERAL PLAN ESTIMATE OR PLANNING ESTIMATE X DPD-DSD-DIS (Rev 8/92) STRUCTURE BR. NO. RCVD BY ESTIMATING GROUP Linda Creek Bridge (Widen) IN TYPE DISTRICT CO RTE KP CIP Reinf Concrete T-Beam 3 SAC 80 LENGTH ' x WIDTH 14.50' = AREA 2436 SF OUT DESIGN SECTION DOKKEN QUANTITIES BY T. Osterkamp DATE 4/8/15 ESTIMATE NO STRUCTURES QUANTITIES CHK BY R. Griggs DATE 4/10/15 PRICED BY: RG AND ROADWORK CHG UNIT AND EA 2012 & 2013 COST INDEX CONTRACT ITEMS UNIT QUANTITY PRICE AMOUNT REMOVE ASPHALT CONCRETE SURFACING SQFT 1,689 $4.00 $6, BRIDGE REMOVAL (PORTION) LS 1 $10, $10, STRUCTURE EXCAVATION (BRIDGE) CY 271 $60.00 $16, STRUCTURE BACKFILL (BRIDGE) CY 178 $45.00 $8, FURNISH STEEL PILING (HP 14 X 89) LF 1,610 $40.00 $64, DRIVE STEEL PILING (HP 14 X 89) EA 30 $1, $36, STRUCTURAL CONCRETE, BRIDGE FOOTING CY 25 $ $9, STRUCTURAL CONCRETE, BRIDGE CY 255 $ $153, DRILL AND BOND DOWEL LF 40 $60.00 $2, BAR REINFORCING STEEL (BRIDGE) LB 85,000 $1.15 $97, SOUND WALL (MASONRY BLOCK) SQFT 1,512 $24.00 $36, CONCRETE BARRIER (TYPE 736 MOD) LF 210 $ $21, A FISH CHANNEL LS 1 $30, $30,000 $0 $0 $0 $0 $0 SUB TOTAL $491,115 Notes: MOBILIZATION ( 10% ) $54,568 SUB TOTAL BRIDGE ITEMS $545,684 CONTINGENCIES (25%) $136,421 BRIDGE TOTAL $682,105 FOR BUDGET PURPOSES ONLY - SAY $690,000 COMMENTS $ / SF FM

8 STATE OF CALIFORNIA - DEPARTMENT OF TRANSPORTATION BRIDGE GENERAL PLAN ESTIMATE OR PLANNING ESTIMATE X DPD-DSD-DIS (Rev 8/92) STRUCTURE BR. NO. RCVD BY ESTIMATING GROUP Wall 45 - Sta to Sta Westbound TBD IN TYPE DISTRICT CO RTE KP 10' & 12' SW on Type 5SWB and Type 5SWBP 3 SAC 80 LENGTH ' x AVE HT 8.53' = AREA 9682 SF OUT DESIGN SECTION DOKKEN QUANTITIES BY R. Griggs DATE 4/8/15 ESTIMATE NO STRUCTURES QUANTITIES CHK BY T. Osterkamp DATE 4/10/15 PRICED BY: RG AND ROADWORK CHG UNIT AND EA 2012 & 2013 COST INDEX CONTRACT ITEMS UNIT QUANTITY PRICE AMOUNT STRUCTURE EXCAVATION (RETAINING WALL) CY 2,103 $45.00 $94, STRUCTURE BACKFILL (RETAINING WALL) CY 2,543 $45.00 $114,425 $ FURNISH STEEL PILING (HP 12 X 53) LF 2,100 $ DRIVE STEEL PILE (HP 12 X 53) EA 42 $1, STRUCTURAL CONCRETE, RETAINING WALL CY 924 $ $392, BAR REINFORCING STEEL (RETAINING WALL) LB 70,436 $1.15 $81, CONCRETE BARRIER TYPE 736S (MOD) LF 1,135 $ $113,500 SUB TOTAL $796,239 Notes: MOBILIZATION ( 10% ) $88,471 SUB TOTAL BRIDGE ITEMS $884,710 CONTINGENCIES (25%) $221,178 BRIDGE TOTAL $1,105,888 FOR BUDGET PURPOSES ONLY - SAY $1,110,000 COMMENTS $ / SF FM

9 STATE OF CALIFORNIA - DEPARTMENT OF TRANSPORTATION BRIDGE GENERAL PLAN ESTIMATE OR PLANNING ESTIMATE X DPD-DSD-DIS (Rev 8/92) STRUCTURE BR. NO. RCVD BY ESTIMATING GROUP Sound Wall 45 Only - Sta to Sta Westbound TBD IN TYPE DISTRICT CO RTE KP 10' & 12' SW on Type 5SWB and Type 5SWBP 3 SAC 80 LENGTH ' x AVE HT 7 = AREA 8365 SF OUT DESIGN SECTION DOKKEN QUANTITIES BY R. Griggs DATE 4/8/15 ESTIMATE NO STRUCTURES QUANTITIES CHK BY T. Osterkamp DATE 4/10/15 PRICED BY: RG AND ROADWORK CHG UNIT AND EA 2012 & 2013 COST INDEX CONTRACT ITEMS UNIT QUANTITY PRICE AMOUNT SOUND WALL (MASONRY BLOCK) SQFT 8,365 $20.00 $167,300 SUB TOTAL $167,300 Notes: Only cost of masonry block is included, barrier included with MOBILIZATION ( 10% ) $18,589 retaining wall. SUB TOTAL BRIDGE ITEMS $185,889 CONTINGENCIES (25%) $46,472 BRIDGE TOTAL $232,361 FOR BUDGET PURPOSES ONLY - SAY $240,000 COMMENTS $ / SF FM

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25 Advance Planning Study (APS) Design Memorandum Date: Consultant Firm (for structures): Phone No: April 21, 2015 Dokken Engineering (916) Project Manager: Project Engineer: Phone No: Lia Diamond, PE Tim Osterkamp, PE (916) Designed by: County: Rte: Rosa Griggs, PE / Placer Interstate 80 Tim Osterkamp, PE Project Description: Widening of Interstate 80 by adding a lane to eastbound between SR-65 and Rocklin Road and westbound between Douglas Blvd and Riverside Ave. Introduction The purpose of this memorandum is to describe and discuss the proposed structure work for the Widening of Interstate 80 by adding a lane to eastbound between SR-65 and Rocklin Road and westbound between Douglas Blvd and Riverside Ave. Two alternatives are proposed. Alternative 1 proposes to add a 12 auxiliary lane from SR-65 to Rocklin Road in the eastbound direction and a new 752-foot long 14 tall sound wall is proposed. It will tie into the existing sound wall at Sta which is approximately 14 tall at Sta but is up to 15-4 tall. In the westbound direction, it is proposed to add a 12 auxiliary lane from Douglas Blvd to Riverside Avenue. A 1,928-foot long 12 to 10 tall sound wall is proposed beginning at Sta This sound wall will start as a 12 tall sound wall continue east over the existing Linda Creek Bridge (Br. No ) to Sta where it will become a 10 sound wall. The 10 sound wall extends to Sta There is an existing 10 sound wall from sta to Sta that will need to be removed because it conflicts with the proposed auxiliary lane and shoulder. Alternative 2 proposes the same improvements as Alternative 1 in the eastbound direction. In the westbound direction instead of an auxiliary lane from Douglas Boulevard to Riverside Avenue a lomger fifth lane is proposed from the Douglas Boulevard exit to the Riverside Avenue on-ramp. This would provide for a continuous fifth lane. The proposed structural work is the same for both Alternatives. The addition of the fifth lane at the Douglas Boulevard interchange and at the Riverside avenue interchange does not require any additional retaining walls or bridge modifications. Overview of Structure work: In order to add the auxiliary lane in the eastbound direction, various retaining walls will need to be built to retain both I-80 and China Garden Road which parallels I-80. The proposed sound wall will be supported on both a retaining wall and Type 736SV barriers. In the westbound direction, the addition of the auxiliary lane requires several retaining walls to retain Interstate 80, the widening of Linda Creek Bridge (Br. No ) and removal of portions of the existing sound wall. The proposed sound wall will be supported on Type 736SV barriers, the Linda Creek Bridge and a retaining wall. Aesthetics: The new facilities are proposed to match the aesthetics of the existing bridge and sound walls. DE Project

26 Stage Construction: Because all the construction is on the right side of the road, it is proposed to place K-rail on the right edge of travel way during construction. This allows ample space for the construction of the walls and bridge to be completed in one phase. Seismic Considerations: Based on the Preliminary Foundation Report the site soils closely reflect a Caltrans Soil Type D Site Class. A shear velocity of 320 meters/sec is recommended for the soil profile. The potential for liquefaction or lateral spreading is low. Structure Type: Eastbound: The addition of the auxiliary lane requires the construction of five retaining walls. Two of these walls are standard plan retaining walls and do not require APS s. The following walls are nonstandard and are included in this APS package: Wall 177: Wall 177 is 400 long, supports a 14 sound wall and is proposed to be founded on a spread footing. Due to the proximity to the right-of-way a Type 5SWB wall is proposed. The maximum design height of the wall is 8 ft. Wall 188: This wall is located approximately 7 feet in front of the existing 16 sound wall. The maximum wall height is 5.5. To minimize impacts to the existing sound wall foundation, a soldier pile wall is proposed. Concrete lagging and troweled shotcrete is proposed to obtain an appropriate surface finish. Wall 197: Wall 197 is 650 long and is proposed to be founded on a spread footing. Due to the proximity to the right-of-way a Type 7B wall is proposed. The maximum design height of the wall is 10 ft. Westbound: The addition of the auxiliary lane requires the addition of five retaining walls and widening the existing Linda Creek Bridge. Four of these walls are standard plan retaining walls and do not require APS s. The following APS s are included in this package: Linda Creek Bridge (Widen): To accommodate the auxiliary lane and wider shoulder, the bridge will be widened 14-6 to a total width of The widening will be a cast-in-place reinforced concrete T-Beam to match the existing structure type. The bridge piers and Abutment 4 will be founded on driven piles, and Abutment 1 will be founded on a spread footing. Wall 45: Wall 45 is 1135 long and supports a sound wall. The first 210 of wall, starting at the bridge and going east is a Type 5SWBP retaining wall with a 12 sound wall and is supported on piles. The remaining 925 is Type 5SWB retaining wall and is proposed to be supported on spread footings. The Type 5SWBP/5SWB walls are proposed due to the proximity to the right-ofway. The maximum design height of the wall is 14 near the Linda Creek Bridge, but varies from 8 to 12 for most of the wall. Construction Costs: Detailed cost estimates for the structures are attached. Anticipated bid items are broken down by item, quantity, and cost. DE Project