US Bridges

FAU 3956 over Cobb Creek

Good

Washington County, Tennessee · East Oakland Avenue · Structure no. 90039560001

Built
1995
30 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
10,360
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 3956 over Cobb Creek is a concrete continuous culvert carrying FAU 3956 over Cobb Creek in Washington County, Tennessee. It was built in 1995, so it is 30 years old, younger than the Tennessee average of 47.4 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 10,360 vehicles a day, roughly 4% of them trucks, projected to reach 16,576 by 2042. The structure is 26 ft (7.8 m) long and 154 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFAU 3956
CrossesCobb Creek
LocationEast Oakland Avenue
RouteCity Street 3956
Coordinates36.35948, -82.37863
Functional classUrban Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span11 ft (3.5 m)
Deck width154 ft (47 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,360 (2021)
Projected traffic16,576 by 2042
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 FAU 3956 over Cobb Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is FAU 3956 over Cobb 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 June 2024.

How much traffic does FAU 3956 over Cobb Creek carry?

About 10,360 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAU 3956 over Cobb Creek?

The structure is 26 ft (7.8 m) long with a longest span of 11 ft (3.5 m) and a deck 154 ft wide.

Who owns FAU 3956 over Cobb Creek?

It is owned by the City or Municipal Highway Agency.