US Bridges

Whealan Road over Miles Creek

Fair

Merced County, California · 0.3 MI N Mission Ave · Structure no. 39C0175

Built
1968
57 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
50 ft
2 main spans
Daily traffic
218
2018 count
Owner
County
County Highway Agency

About this bridge

Whealan Road over Miles Creek is a concrete continuous slab carrying Whealan Road over Miles Creek 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 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 218 vehicles a day, roughly 20% of them trucks, projected to reach 541 by 2042. The structure is 50 ft (15.2 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesWhealan Road
CrossesMiles Creek
Location0.3 MI N Mission Ave
RouteCounty Highway 0
CountyMerced County
StateCalifornia
Coordinates37.27859, -120.34295
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span24 ft (7.3 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic218 (2018)
Projected traffic541 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Whealan Road over Miles Creek built?

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

What condition is Whealan Road over Miles 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 2024.

How much traffic does Whealan Road over Miles Creek carry?

About 218 vehicles per day (2018 count), of which roughly 20% are trucks.

How long is Whealan Road over Miles Creek?

The structure is 50 ft (15.2 m) long with a longest span of 24 ft (7.3 m) and a deck 29 ft wide.

Who owns Whealan Road over Miles Creek?

It is owned by the County Highway Agency.