US Bridges

Nfa 1132 (sa 7707) over Sequatchie Riv Overflow

Fair

Sequatchie County, Tennessee · In City of Dunlap · Structure no. 77F00060001

Built
1990
35 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
49 ft
3 main spans
Daily traffic
1,239
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa 1132 (sa 7707) over Sequatchie Riv Overflow is a concrete continuous culvert carrying Nfa 1132 (sa 7707) over Sequatchie Riv Overflow in Sequatchie County, Tennessee. It was built in 1990, so it is 35 years old, younger 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 1,239 vehicles a day, roughly 3% of them trucks, projected to reach 1,776 by 2039. The structure is 49 ft (14.9 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa 1132 (sa 7707)
CrossesSequatchie Riv Overflow
LocationIn City of Dunlap
RouteCity Street 1132
CountySequatchie County
StateTennessee
Coordinates35.36094, -85.37366
Functional classRural Minor Collector

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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span15 ft (4.6 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,239 (2021)
Projected traffic1,776 by 2039
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Nfa 1132 (sa 7707) over Sequatchie Riv Overflow built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nfa 1132 (sa 7707) over Sequatchie Riv Overflow 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 December 2024.

How much traffic does Nfa 1132 (sa 7707) over Sequatchie Riv Overflow carry?

About 1,239 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1132 (sa 7707) over Sequatchie Riv Overflow?

The structure is 49 ft (14.9 m) long with a longest span of 15 ft (4.6 m) and a deck 30 ft wide.

Who owns Nfa 1132 (sa 7707) over Sequatchie Riv Overflow?

It is owned by the City or Municipal Highway Agency.