US Bridges

I75 over Branch

Good

Hamilton County, Tennessee · 5.28 MI FM Ramp SR153 · Structure no. 33I00750047

Built
1960
65 years old, rebuilt 2001
Condition
Good
inspected July 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
101,811
2021 count
Owner
State
State Highway Agency

About this bridge

I75 over Branch is a concrete continuous culvert carrying I75 over Branch in Hamilton County, Tennessee. It was built in 1960 and reconstructed in 2001, so it is 65 years old, older 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 101,811 vehicles a day, roughly 7% of them trucks, projected to reach 139,458 by 2042. The structure is 23 ft (7 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesI75
CrossesBranch
Location5.28 MI FM Ramp SR153
RouteInterstate 75
Coordinates35.03847, -85.15998
Functional classUrban Principal Arterial - Interstate

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101,811 (2021)
Projected traffic139,458 by 2042
Trucks7%
Lanes on structure8
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$575,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I75 over Branch built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2001.

What condition is I75 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 July 2024.

How much traffic does I75 over Branch carry?

About 101,811 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I75 over Branch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns I75 over Branch?

It is owned by the State Highway Agency.