US Bridges

I75 over Branch

Fair

Hamilton County, Tennessee · 6.66 MI FM Ga Tn ST Li · Structure no. 33I00750053

Built
1960
65 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
99,576
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, 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 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 99,576 vehicles a day, roughly 6% of them trucks, projected to reach 144,496 by 2040. The structure is 25 ft (7.6 m) long and 235 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI75
CrossesBranch
Location6.66 MI FM Ga Tn ST Li
RouteInterstate 75
CountyHamilton County
StateTennessee
Coordinates35.05243, -85.14188
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span10 ft (3 m)
Deck width235 ft (71.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99,576 (2021)
Projected traffic144,496 by 2040
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$398,000 (2020 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.

What condition is I75 over Branch 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 July 2024.

How much traffic does I75 over Branch carry?

About 99,576 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I75 over Branch?

The structure is 25 ft (7.6 m) long with a longest span of 10 ft (3 m) and a deck 235 ft wide.

Who owns I75 over Branch?

It is owned by the State Highway Agency.