US Bridges

Washington Road over Eastside Bypass

PoorClosed to traffic

Merced County, California · 0.1 MI E Harmon RD · Structure no. 39C0347

Built
1968
57 years old
Condition
Poor
inspected November 2024
Type
Slab
Concrete Continuous
Length
705 ft
24 main spans
Daily traffic
120
1990 count
Owner
County
County Highway Agency

About this bridge

Washington Road over Eastside Bypass is a concrete continuous slab carrying Washington Road over Eastside Bypass in Merced County, California. It was built in 1968, so it is 57 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 0 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 120 vehicles a day, roughly 10% of them trucks, projected to reach 480 by 2042. The structure is 705 ft (214.9 m) long and 30 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesWashington Road
CrossesEastside Bypass
Location0.1 MI E Harmon RD
RouteCounty Highway 0
Coordinates37.11324, -120.56364
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourScour critical; bridge has failed and is closed
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans24
Design loadUnknown
Structure length705 ft (214.9 m)
Longest span30 ft (9.1 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (1990)
Projected traffic480 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$7.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Washington Road over Eastside Bypass built?

It was built in 1968, making it 57 years old in 2025.

What condition is Washington Road over Eastside Bypass in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Washington Road over Eastside Bypass carry?

About 120 vehicles per day (1990 count), of which roughly 10% are trucks.

How long is Washington Road over Eastside Bypass?

The structure is 705 ft (214.9 m) long with a longest span of 30 ft (9.1 m) and a deck 30 ft wide.

Who owns Washington Road over Eastside Bypass?

It is owned by the County Highway Agency.