US Bridges

Old Sherwin Gr RD over Rock Creek

Good

Inyo County, California · 0.03 MI N/O Gorge Road · Structure no. 48C0010

Built
1919
106 years old, rebuilt 1953
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
25 ft
1 main span
Daily traffic
520
2017 count
Owner
County
County Highway Agency

About this bridge

Old Sherwin Gr RD over Rock Creek is a concrete stringer/multi-beam or girder carrying Old Sherwin Gr RD over Rock Creek in Inyo County, California. It was built in 1919 and reconstructed in 1953, so it is 106 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 520 vehicles a day, roughly 2% of them trucks, projected to reach 587 by 2041. The structure is 25 ft (7.6 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesOld Sherwin Gr RD
CrossesRock Creek
Location0.03 MI N/O Gorge Road
RouteCounty Highway 0
Coordinates37.44567, -118.57642
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating19 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width31 ft (9.6 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2017)
Projected traffic587 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 Old Sherwin Gr RD over Rock Creek built?

It was built in 1919, making it 106 years old in 2025. It was reconstructed in 1953.

What condition is Old Sherwin Gr RD over Rock Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Old Sherwin Gr RD over Rock Creek carry?

About 520 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Old Sherwin Gr RD over Rock Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 31 ft wide.

Who owns Old Sherwin Gr RD over Rock Creek?

It is owned by the County Highway Agency.