US Bridges

Old State Route 88 over West Fork Carson River

Fair

Alpine County, California · 10-ALP-088-16.22 · Structure no. 31 0005Z

Built
1939
86 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
3,200
2009 count
Owner
State
State Highway Agency

About this bridge

Old State Route 88 over West Fork Carson River is a steel stringer/multi-beam or girder carrying Old State Route 88 over West Fork Carson River in Alpine County, California. It was built in 1939, so it is 86 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,200 vehicles a day, roughly 5% of them trucks, projected to reach 3,666 by 2041. The structure is 55 ft (16.8 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesOld State Route 88
CrossesWest Fork Carson River
Location10-ALP-088-16.22
RouteState Highway 88
Coordinates38.76959, -119.87162
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating25.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length55 ft (16.8 m)
Longest span54 ft (16.5 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2009)
Projected traffic3,666 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old State Route 88 over West Fork Carson River built?

It was built in 1939, making it 86 years old in 2025.

What condition is Old State Route 88 over West Fork Carson River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Old State Route 88 over West Fork Carson River carry?

About 3,200 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Old State Route 88 over West Fork Carson River?

The structure is 55 ft (16.8 m) long with a longest span of 54 ft (16.5 m) and a deck 25 ft wide.

Who owns Old State Route 88 over West Fork Carson River?

It is owned by the State Highway Agency.