US Bridges

Sites-Lodoga Road over Squaw Creek

Fair

Colusa County, California · 1.2 MI N of Lodoga · Structure no. 15C0184

Built
1998
27 years old
Condition
Fair
inspected October 2024
Type
Arch - Deck
Aluminum, Wrought Iron, or Cast Iron
Length
32 ft
1 main span
Daily traffic
283
2015 count
Owner
County
County Highway Agency

About this bridge

Sites-Lodoga Road over Squaw Creek is a aluminum, wrought iron, or cast iron arch - deck carrying Sites-Lodoga Road over Squaw Creek in Colusa County, California. It was built in 1998, so it is 27 years old, younger 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 283 vehicles a day, roughly 2% of them trucks, projected to reach 610 by 2045. The structure is 32 ft (9.9 m) long. If it were closed, the detour would be 40.4 mi (65 km).

CarriesSites-Lodoga Road
CrossesSquaw Creek
Location1.2 MI N of Lodoga
RouteCounty Highway 0
Coordinates39.31309, -122.48555
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadUnknown
Structure length32 ft (9.9 m)
Longest span32 ft (9.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic283 (2015)
Projected traffic610 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed40.4 mi (65 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 Sites-Lodoga Road over Squaw Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Sites-Lodoga Road over Squaw 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 Sites-Lodoga Road over Squaw Creek carry?

About 283 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Sites-Lodoga Road over Squaw Creek?

The structure is 32 ft (9.9 m) long with a longest span of 32 ft (9.9 m).

Who owns Sites-Lodoga Road over Squaw Creek?

It is owned by the County Highway Agency.