US Bridges

Garmire RD over Mcclatchy Slough

Fair

Sutter County, California · Mcclatchy RD · Structure no. 18C0120

Built
1923
102 years old
Condition
Fair
inspected February 2024
Type
Girder and Floorbeam System
Concrete
Length
47 ft
1 main span
Daily traffic
381
2015 count
Owner
County
County Highway Agency

About this bridge

Garmire RD over Mcclatchy Slough is a concrete girder and floorbeam system carrying Garmire RD over Mcclatchy Slough in Sutter County, California. It was built in 1923, so it is 102 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 5 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 381 vehicles a day, roughly 9% of them trucks, projected to reach 218 by 2042. The structure is 47 ft (14.2 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesGarmire RD
CrossesMcclatchy Slough
LocationMcclatchy RD
RouteCounty Highway 0
Coordinates39.10094, -121.82854
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.4 US tons
Inventory rating16.4 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length47 ft (14.2 m)
Longest span41 ft (12.5 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic381 (2015)
Projected traffic218 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Garmire RD over Mcclatchy Slough built?

It was built in 1923, making it 102 years old in 2025.

What condition is Garmire RD over Mcclatchy Slough 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 February 2024.

How much traffic does Garmire RD over Mcclatchy Slough carry?

About 381 vehicles per day (2015 count), of which roughly 9% are trucks.

How long is Garmire RD over Mcclatchy Slough?

The structure is 47 ft (14.2 m) long with a longest span of 41 ft (12.5 m) and a deck 26 ft wide.

Who owns Garmire RD over Mcclatchy Slough?

It is owned by the County Highway Agency.