Wikipedia: New Youngs Bay Bridge

The New Youngs Bay Bridge is a vertical-lift bridge over Youngs Bay on U.S. Route 101 (US 101) between Astoria and Warrenton. Including the approaches, it is 4,200 feet (1,300 m) long and was completed in 1964.^[1]

The bridge was built to the west of, closely in parallel to, a 1.6-mile (2.6 km) railroad trestle which also crossed the bay. It was built in 1896 for the Astoria and Columbia River Railway Company. The New Youngs Bay Bridge passed over the top of the railway bridge near the north river bank. The railroad bridge was used for the last time in 1982 and was dismantled in 1986.^[2]

BridgeHunter.com: Youngs Bay Bridge (New)

Overview: Vertical lift bridge over Youngs Bay on US 101 in Astoria

Location: Astoria, Clatsop County, Oregon

Status: Open to traffic

Future prospects: Rehabilitation project scheduled for 2019 through 2021.

History: Built 1964

Builder: Ivan D. Merchant (Bridge Engineer)

Design: Vertical lift

Dimensions

Length of largest span: 152.5 ft.

Total length: 4,208.3 ft. (0.8 mi.)

Deck width: 30.0 ft.

Vertical clearance above deck: 16.3 ft.

Average daily traffic (as of 2016)

13,600

Inventory numbers

OR 08306 (Oregon Dept. of Transportation structure number)

BH 29910 (Bridgehunter.com ID)

BridgeReports.com: US101 (HWY 9) over YOUNGS BAY

Latest Available Inspection: October 2017

Good/Fair/Poor Condition: Fair

Status: Open, no restriction [A]

Average daily traffic: 13,600 [as of 2016]

Truck traffic: 5% of total traffic

Deck condition: Fair [5 out of 9]

Superstructure condition: Fair [5 out of 9]

Substructure condition: Satisfactory [6 out of 9]

Structural appraisal: Somewhat better than minimum adequacy to tolerate being left in place as is [5]

Deck geometry appraisal: Meets minimum tolerable limits to be left in place as is [4]

Water adequacy appraisal: Equal to present desirable criteria [8]

Roadway alignment appraisal: Equal to present desirable criteria [8]

Channel protection: Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]

Pier/abutment protection: In place and functioning [2]

Scour condition: Bridge foundations determined to be stable for assessed or calculated scour condition. [5]

Sufficiency rating: 56.2

Links

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