US Bridges

Meridian RD over Zimmershed Creek

Fair

Tehama County, California · 0.8 MI S Lassen RD · Structure no. 08C0214

Built
1930
95 years old, rebuilt 1997
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
4 main spans
Daily traffic
100
2010 count
Owner
County
County Highway Agency

About this bridge

Meridian RD over Zimmershed Creek is a steel stringer/multi-beam or girder carrying Meridian RD over Zimmershed Creek in Tehama County, California. It was built in 1930 and reconstructed in 1997, so it is 95 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 205 by 2042. The structure is 81 ft (24.7 m) long and 16 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesMeridian RD
CrossesZimmershed Creek
Location0.8 MI S Lassen RD
RouteCounty Highway 0
Coordinates39.89988, -121.91884
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating83.2 US tons
Inventory rating49.6 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans4
Design loadUnknown
Structure length81 ft (24.7 m)
Longest span20 ft (6.1 m)
Deck width16 ft (5 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2010)
Projected traffic205 by 2042
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 Meridian RD over Zimmershed Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1997.

What condition is Meridian RD over Zimmershed 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 November 2024.

How much traffic does Meridian RD over Zimmershed Creek carry?

About 100 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Meridian RD over Zimmershed Creek?

The structure is 81 ft (24.7 m) long with a longest span of 20 ft (6.1 m) and a deck 16 ft wide.

Who owns Meridian RD over Zimmershed Creek?

It is owned by the County Highway Agency.