US Bridges

Guntly RD (cr 260) over Cold Creek

Fair

Mendocino County, California · 0.20 MI N SH 20 · Structure no. 10C0087

Built
1922
103 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
60 ft
2 main spans
Daily traffic
27
2011 count
Owner
County
County Highway Agency

About this bridge

Guntly RD (cr 260) over Cold Creek is a concrete tee beam carrying Guntly RD (cr 260) over Cold Creek in Mendocino County, California. It was built in 1922, so it is 103 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 27 vehicles a day, projected to reach 21 by 2041. The structure is 60 ft (18.3 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesGuntly RD (cr 260)
CrossesCold Creek
Location0.20 MI N SH 20
RouteCounty Highway 0
CountyMendocino County
StateCalifornia
Coordinates39.24374, -123.12153
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating38.9 US tons
Inventory rating23.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span28 ft (8.5 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27 (2011)
Projected traffic21 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Guntly RD (cr 260) over Cold Creek built?

It was built in 1922, making it 103 years old in 2025.

What condition is Guntly RD (cr 260) over Cold 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 2023.

How much traffic does Guntly RD (cr 260) over Cold Creek carry?

About 27 vehicles per day (2011 count).

How long is Guntly RD (cr 260) over Cold Creek?

The structure is 60 ft (18.3 m) long with a longest span of 28 ft (8.5 m) and a deck 24 ft wide.

Who owns Guntly RD (cr 260) over Cold Creek?

It is owned by the County Highway Agency.