US Bridges

Bakersfld-Glen RD over Granite Canyon Creek

Poor

Kern County, California · 0.5 MI N/O Rnd Mtn RD · Structure no. 50C0085

Built
1948
77 years old
Condition
Poor
inspected November 2024
Type
Slab
Concrete Continuous
Length
47 ft
2 main spans
Daily traffic
930
2007 count
Owner
County
County Highway Agency

About this bridge

Bakersfld-Glen RD over Granite Canyon Creek is a concrete continuous slab carrying Bakersfld-Glen RD over Granite Canyon Creek in Kern County, California. It was built in 1948, so it is 77 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 930 vehicles a day, roughly 5% of them trucks, projected to reach 2,106 by 2046. The structure is 47 ft (14.3 m) long and 29 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesBakersfld-Glen RD
CrossesGranite Canyon Creek
Location0.5 MI N/O Rnd Mtn RD
RouteCounty Highway 0
Coordinates35.53772, -118.95944
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span23 ft (7 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic930 (2007)
Projected traffic2,106 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$211,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bakersfld-Glen RD over Granite Canyon Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is Bakersfld-Glen RD over Granite Canyon Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Bakersfld-Glen RD over Granite Canyon Creek carry?

About 930 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is Bakersfld-Glen RD over Granite Canyon Creek?

The structure is 47 ft (14.3 m) long with a longest span of 23 ft (7 m) and a deck 29 ft wide.

Who owns Bakersfld-Glen RD over Granite Canyon Creek?

It is owned by the County Highway Agency.