US Bridges

Healy Road over Miles Creek

Fair

Merced County, California · 0.3 MI N Reilly Road · Structure no. 39C0172

Built
1960
65 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
68 ft
3 main spans
Daily traffic
889
2019 count
Owner
County
County Highway Agency

About this bridge

Healy Road over Miles Creek is a concrete continuous slab carrying Healy Road over Miles Creek in Merced County, California. It was built in 1960, so it is 65 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 889 vehicles a day, roughly 6% of them trucks, projected to reach 419 by 2046. The structure is 68 ft (20.6 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesHealy Road
CrossesMiles Creek
Location0.3 MI N Reilly Road
RouteCounty Highway 0
CountyMerced County
StateCalifornia
Coordinates37.26354, -120.43442
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 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 rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length68 ft (20.6 m)
Longest span27 ft (8.2 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic889 (2019)
Projected traffic419 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Healy Road over Miles Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Healy 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 January 2024.

How much traffic does Healy Road over Miles Creek carry?

About 889 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is Healy Road over Miles Creek?

The structure is 68 ft (20.6 m) long with a longest span of 27 ft (8.2 m) and a deck 32 ft wide.

Who owns Healy Road over Miles Creek?

It is owned by the County Highway Agency.