US Bridges

Plainsburg Road over Miles Creek

Good

Merced County, California · 0.38 MI S Childs Avenue · Structure no. 39C0009

Built
1938
87 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
59 ft
3 main spans
Daily traffic
1,826
2018 count
Owner
County
County Highway Agency

About this bridge

Plainsburg Road over Miles Creek is a wood or timber stringer/multi-beam or girder carrying Plainsburg Road over Miles Creek in Merced County, California. It was built in 1938, so it is 87 years old, older 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 1,826 vehicles a day, roughly 20% of them trucks, projected to reach 2,077 by 2042. The structure is 59 ft (18 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesPlainsburg Road
CrossesMiles Creek
Location0.38 MI S Childs Avenue
RouteCounty Highway 0
Coordinates37.28209, -120.32482
Functional classRural Major Collector

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 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating23.6 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length59 ft (18 m)
Longest span19 ft (5.8 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,826 (2018)
Projected traffic2,077 by 2042
Trucks20%
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 Plainsburg Road over Miles Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is Plainsburg Road 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 2024.

How much traffic does Plainsburg Road over Miles Creek carry?

About 1,826 vehicles per day (2018 count), of which roughly 20% are trucks.

How long is Plainsburg Road over Miles Creek?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns Plainsburg Road over Miles Creek?

It is owned by the County Highway Agency.