US Bridges

Keyes Road over Dry Creek

Fair

Merced County, California · 1.0 MI W Cox Ferry Road · Structure no. 39C0224

Built
1964
61 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
106 ft
4 main spans
Daily traffic
354
2000 count
Owner
County
County Highway Agency

About this bridge

Keyes Road over Dry Creek is a concrete continuous slab carrying Keyes Road over Dry Creek in Merced County, California. It was built in 1964, so it is 61 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 354 vehicles a day, roughly 3% of them trucks, projected to reach 785 by 2043. The structure is 106 ft (32.3 m) long and 27 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesKeyes Road
CrossesDry Creek
Location1.0 MI W Cox Ferry Road
RouteCounty Highway 0
CountyMerced County
StateCalifornia
Coordinates37.53931, -120.52169
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length106 ft (32.3 m)
Longest span30 ft (9.2 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic354 (2000)
Projected traffic785 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Keyes Road over Dry Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Keyes Road over Dry Creek 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 Keyes Road over Dry Creek carry?

About 354 vehicles per day (2000 count), of which roughly 3% are trucks.

How long is Keyes Road over Dry Creek?

The structure is 106 ft (32.3 m) long with a longest span of 30 ft (9.2 m) and a deck 27 ft wide.

Who owns Keyes Road over Dry Creek?

It is owned by the County Highway Agency.