US Bridges

State Route 168 over Bishop Creek Overflow

Good

Inyo County, California · 09-INY-168-14.90-BIS · Structure no. 48 0066

Built
1985
40 years old
Condition
Good
inspected September 2022
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
8,000
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 168 over Bishop Creek Overflow is a concrete continuous culvert carrying State Route 168 over Bishop Creek Overflow in Inyo County, California. It was built in 1985, so it is 40 years old, younger 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 8,000 vehicles a day, roughly 4% of them trucks, projected to reach 9,477 by 2040. The structure is 34 ft (10.4 m) long and 85 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 168
CrossesBishop Creek Overflow
Location09-INY-168-14.90-BIS
RouteState Highway 168
Coordinates37.36011, -118.45636
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span17 ft (5.2 m)
Deck width85 ft (25.9 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2017)
Projected traffic9,477 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 168 over Bishop Creek Overflow built?

It was built in 1985, making it 40 years old in 2025.

What condition is State Route 168 over Bishop Creek Overflow 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 2022.

How much traffic does State Route 168 over Bishop Creek Overflow carry?

About 8,000 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is State Route 168 over Bishop Creek Overflow?

The structure is 34 ft (10.4 m) long with a longest span of 17 ft (5.2 m) and a deck 85 ft wide.

Who owns State Route 168 over Bishop Creek Overflow?

It is owned by the State Highway Agency.