US Bridges

Maxwell-Sites RD over Stone Corral Creek

Fair

Colusa County, California · 1.5 MI W Mill Orchard RD · Structure no. 15C0017

Built
1957
68 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
57 ft
3 main spans
Daily traffic
462
2014 count
Owner
County
County Highway Agency

About this bridge

Maxwell-Sites RD over Stone Corral Creek is a steel continuous stringer/multi-beam or girder carrying Maxwell-Sites RD over Stone Corral Creek in Colusa County, California. It was built in 1957, so it is 68 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 6 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 462 vehicles a day, roughly 1% of them trucks, projected to reach 1,109 by 2046. The structure is 57 ft (17.4 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesMaxwell-Sites RD
CrossesStone Corral Creek
Location1.5 MI W Mill Orchard RD
RouteCounty Highway 0
Coordinates39.28821, -122.30085
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating32.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic462 (2014)
Projected traffic1,109 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Maxwell-Sites RD over Stone Corral Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Maxwell-Sites RD over Stone Corral 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 Maxwell-Sites RD over Stone Corral Creek carry?

About 462 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Maxwell-Sites RD over Stone Corral Creek?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns Maxwell-Sites RD over Stone Corral Creek?

It is owned by the County Highway Agency.