US Bridges

Nfa 1629 (sa 5715) over Overflow

Good

Madison County, Tennessee · 2.1 MI W JCT SR5&SR18 · Structure no. 57016290001

Built
2012
13 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
80 ft
1 main span
Daily traffic
2,681
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1629 (sa 5715) over Overflow is a concrete box beam or girders - multiple carrying Nfa 1629 (sa 5715) over Overflow in Madison County, Tennessee. It was built in 2012, so it is 13 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 2,681 vehicles a day, roughly 3% of them trucks, projected to reach 5,376 by 2041. The structure is 80 ft (24.4 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNfa 1629 (sa 5715)
CrossesOverflow
Location2.1 MI W JCT SR5&SR18
RouteCounty Highway 1629
Coordinates35.56339, -88.84664
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span80 ft (24.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,681 (2021)
Projected traffic5,376 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 1629 (sa 5715) over Overflow built?

It was built in 2012, making it 13 years old in 2025.

What condition is Nfa 1629 (sa 5715) over Overflow 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 May 2023.

How much traffic does Nfa 1629 (sa 5715) over Overflow carry?

About 2,681 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1629 (sa 5715) over Overflow?

The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 32 ft wide.

Who owns Nfa 1629 (sa 5715) over Overflow?

It is owned by the County Highway Agency.