US Bridges

Sites-Lodoga Road over Howard Creek

Fair

Colusa County, California · 15 MI West of I-5 · Structure no. 15C0075

Built
1995
30 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
20 ft
1 main span
Daily traffic
303
2014 count
Owner
County
County Highway Agency

About this bridge

Sites-Lodoga Road over Howard Creek is a steel culvert carrying Sites-Lodoga Road over Howard Creek in Colusa County, California. It was built in 1995, so it is 30 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 303 vehicles a day, roughly 2% of them trucks, projected to reach 511 by 2046. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 40.4 mi (65 km).

CarriesSites-Lodoga Road
CrossesHoward Creek
Location15 MI West of I-5
RouteCounty Highway 0
Coordinates39.35084, -122.40681
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 48 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 typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length20 ft (6.2 m)
Longest span20 ft (6.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic303 (2014)
Projected traffic511 by 2046
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 Howard Creek built?

It was built in 1995, making it 30 years old in 2025.

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

About 303 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Sites-Lodoga Road over Howard Creek?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.2 m).

Who owns Sites-Lodoga Road over Howard Creek?

It is owned by the County Highway Agency.