US Bridges

South Orchard DR over Miles Creek

Good

Merced County, California · 0.3 MI S Mission Avenue · Structure no. 39C0107

Built
1988
37 years old
Condition
Good
inspected October 2022
Type
Slab
Concrete Continuous
Length
77 ft
3 main spans
Daily traffic
41
2019 count
Owner
County
County Highway Agency

About this bridge

South Orchard DR over Miles Creek is a concrete continuous slab carrying South Orchard DR over Miles Creek in Merced County, California. It was built in 1988, so it is 37 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 41 vehicles a day, roughly 12% of them trucks, projected to reach 143 by 2044. The structure is 77 ft (23.6 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSouth Orchard DR
CrossesMiles Creek
Location0.3 MI S Mission Avenue
RouteCounty Highway 0
Coordinates37.26932, -120.39735
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length77 ft (23.6 m)
Longest span30 ft (9.1 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2019)
Projected traffic143 by 2044
Trucks12%
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 South Orchard DR over Miles Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is South Orchard DR over Miles Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2022.

How much traffic does South Orchard DR over Miles Creek carry?

About 41 vehicles per day (2019 count), of which roughly 12% are trucks.

How long is South Orchard DR over Miles Creek?

The structure is 77 ft (23.6 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.

Who owns South Orchard DR over Miles Creek?

It is owned by the County Highway Agency.