US Bridges

Cemetery Lane over Grist Creek

Fair

Mendocino County, California · 0.5 MI West of SR 162 · Structure no. 10C0178

Built
1960
65 years old, rebuilt 2008
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
72
2011 count
Owner
County
County Highway Agency

About this bridge

Cemetery Lane over Grist Creek is a steel stringer/multi-beam or girder carrying Cemetery Lane over Grist Creek in Mendocino County, California. It was built in 1960 and reconstructed in 2008, so it is 65 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 72 vehicles a day, projected to reach 88 by 2044. The structure is 50 ft (15.2 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCemetery Lane
CrossesGrist Creek
Location0.5 MI West of SR 162
RouteCounty Highway 0
CountyMendocino County
StateCalifornia
Coordinates39.78048, -123.25795
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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.9 US tons
Inventory rating25.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span44 ft (13.5 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72 (2011)
Projected traffic88 by 2044
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Cemetery Lane over Grist Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2008.

What condition is Cemetery Lane over Grist 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 August 2024.

How much traffic does Cemetery Lane over Grist Creek carry?

About 72 vehicles per day (2011 count).

How long is Cemetery Lane over Grist Creek?

The structure is 50 ft (15.2 m) long with a longest span of 44 ft (13.5 m) and a deck 12 ft wide.

Who owns Cemetery Lane over Grist Creek?

It is owned by the County Highway Agency.