US Bridges

FAU 317 over Branch

Good

Hamilton County, Tennessee · 0.22 Mi. W of SR-321 Jct. · Structure no. 33S43430005

Built
1996
29 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
19,180
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 317 over Branch is a concrete continuous culvert carrying FAU 317 over Branch in Hamilton County, Tennessee. It was built in 1996, so it is 29 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 19,180 vehicles a day, roughly 6% of them trucks, projected to reach 32,576 by 2041. The structure is 31 ft (9.3 m) long and 84 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFAU 317
CrossesBranch
Location0.22 Mi. W of SR-321 Jct.
RouteState Highway 317
Coordinates35.06108, -85.07036
Functional classUrban Other Principal 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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.3 m)
Longest span12 ft (3.7 m)
Deck width84 ft (25.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,180 (2021)
Projected traffic32,576 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 FAU 317 over Branch built?

It was built in 1996, making it 29 years old in 2025.

What condition is FAU 317 over Branch 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 October 2024.

How much traffic does FAU 317 over Branch carry?

About 19,180 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAU 317 over Branch?

The structure is 31 ft (9.3 m) long with a longest span of 12 ft (3.7 m) and a deck 84 ft wide.

Who owns FAU 317 over Branch?

It is owned by the State Highway Agency.