US Bridges

UNIT2/UNIT 6B Dike over Marsh Unt 2/MARSH Unt 6B

Fair

Kern County, California · 1.2 MI SW of Hdqtrs · Structure no. 000011610-00041

Built
1970
55 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
91 ft
6 main spans
Daily traffic
15
2024 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

UNIT2/UNIT 6B Dike over Marsh Unt 2/MARSH Unt 6B is a wood or timber stringer/multi-beam or girder carrying UNIT2/UNIT 6B Dike over Marsh Unt 2/MARSH Unt 6B in Kern County, California. It was built in 1970, so it is 55 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 15 vehicles a day, projected to reach 15 by 2044. The structure is 91 ft (27.7 m) long and 12 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUNIT2/UNIT 6B Dike
CrossesMarsh Unt 2/MARSH Unt 6B
Location1.2 MI SW of Hdqtrs
RouteFederal Lands Road 0
CountyKern County
StateCalifornia
Coordinates35.7485, -119.59633
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans6
Design loadUnknown
Structure length91 ft (27.7 m)
Longest span15 ft (4.6 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic15 (2024)
Projected traffic15 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Fish and Wildlife
Maintained byBureau of Fish and Wildlife
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 UNIT2/UNIT 6B Dike over Marsh Unt 2/MARSH Unt 6B built?

It was built in 1970, making it 55 years old in 2025.

What condition is UNIT2/UNIT 6B Dike over Marsh Unt 2/MARSH Unt 6B 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 October 2024.

How much traffic does UNIT2/UNIT 6B Dike over Marsh Unt 2/MARSH Unt 6B carry?

About 15 vehicles per day (2024 count).

How long is UNIT2/UNIT 6B Dike over Marsh Unt 2/MARSH Unt 6B?

The structure is 91 ft (27.7 m) long with a longest span of 15 ft (4.6 m) and a deck 12 ft wide.

Who owns UNIT2/UNIT 6B Dike over Marsh Unt 2/MARSH Unt 6B?

It is owned by the Bureau of Fish and Wildlife.