US Bridges

Nfa E675 over Mountain Creek

Good

Hamilton County, Tennessee · Off Mtn. Creek Rd. · Structure no. 330Z0200001

Built
1992
33 years old
Condition
Good
inspected February 2024
Type
Culvert
Steel
Length
36 ft
3 main spans
Daily traffic
870
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa E675 over Mountain Creek is a steel culvert carrying Nfa E675 over Mountain Creek in Hamilton County, Tennessee. It was built in 1992, so it is 33 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 870 vehicles a day, roughly 2% of them trucks, projected to reach 1,392 by 2040. The structure is 36 ft (11 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa E675
CrossesMountain Creek
LocationOff Mtn. Creek Rd.
RouteCity Street 675
Coordinates35.1338, -85.3033
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 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 rating51.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic870 (2020)
Projected traffic1,392 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 E675 over Mountain Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Nfa E675 over Mountain 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 February 2024.

How much traffic does Nfa E675 over Mountain Creek carry?

About 870 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa E675 over Mountain Creek?

The structure is 36 ft (11 m) long with a longest span of 11 ft (3.4 m).

Who owns Nfa E675 over Mountain Creek?

It is owned by the City or Municipal Highway Agency.