CA ERFO SIERRA NF 05S07(1) NORRIS CREEK BRIDGE   4

CA ERFO SIERRA NF 05S07(1) - NORRIS CREEK BRIDGE

PROJECT DESCRIPTION AND LOCATION: The Sierra National Forest (SNF) sustained significant damage to transportation facilities, including bridges during the 2020 fire season.

The project site is located approximately 37.2 miles northeast of Oakhurst, CA on Forest Service Route 05S007 (Beasore Road) within Sierra National Forest in Madera County, CA.

The original bridge was a one lane, two-way traffic single span structure at a 15-degree skew. It had an overall bridge length of 37 feet, roadway width (curb to curb) of 14.1 ft, and deck width (outside to outside) of 15.4 ft.

SCOPE OF THE WORK: The purpose of the project is to replace the Norris Creek Bridge over Norris Creek within Sierra National Forest in Madera County, California. The bridge was completely damaged by fire in 2020 and will be fully replaced with a prefabricated steel bridge. A two-lane, 70-ft x 24-ft proposed structure is anticipated.

The roadway approaches will be reconstructed for up to 150 feet on either end of the bridges. The bridge and a short section of the roadway approaches will be asphalt overlaid to match the existing roadway section. Bridge rail and guardrail with terminals will be included.

Items worth noting:

• The work will be listed within a single Schedule (Schedule A) and no options are proposed.
• Adjacent segments of Forest Route 05S007 will remain closed during construction and can be used for contractor staging and storage.
• Access is to both sides of the bridge is possible by an approximate 7.5-mile detour.
• Deep foundations (micro-piles or drilled shafts) are anticipated

PRINCIPAL WORK ITEMS:

Approximate quantities for major work items:

• 1 (LPSM) of Removal of Existing Structures and Obstructions
• 8500 CUYD of Excavation/Embankment Construction
• 250 CUYD of Riprap
• 300 TON of Roadway Aggregate
• 70-ft x 256-ft of Prefabricated Steel Bridge
• 200 TON of Asphalt Pavement
• 150 LNFT of Guardrail, including terminals
• 80 hours of Equipment Hours
• 40 hours of Labor Hours

ESITMATED MAGNITUDE: Between $700,000 and $2,000,000