US Bridges

Nfa E507 over Branch

Good

Hamilton County, Tennessee · 1 MI West of I75 · Structure no. 330E5070001

Built
1972
53 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
1,490
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa E507 over Branch is a prestressed concrete box beam or girders - multiple carrying Nfa E507 over Branch in Hamilton County, Tennessee. It was built in 1972, so it is 53 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 1,490 vehicles a day, roughly 2% of them trucks, projected to reach 2,384 by 2040. The structure is 27 ft (8.1 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNfa E507
CrossesBranch
Location1 MI West of I75
RouteCity Street 507
Coordinates35.05172, -85.15565
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 15
Structure length27 ft (8.1 m)
Longest span24 ft (7.3 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,490 (2020)
Projected traffic2,384 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa E507 over Branch built?

It was built in 1972, making it 53 years old in 2025.

What condition is Nfa E507 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 March 2024.

How much traffic does Nfa E507 over Branch carry?

About 1,490 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa E507 over Branch?

The structure is 27 ft (8.1 m) long with a longest span of 24 ft (7.3 m) and a deck 36 ft wide.

Who owns Nfa E507 over Branch?

It is owned by the City or Municipal Highway Agency.