US Bridges

FAP 7 over Duck River

Fair

Maury County, Tennessee · 0.19 Mi.N. of SH 7 Lt. · Structure no. 60SR0060025

Built
1948
77 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
691 ft
3 main spans
Daily traffic
24,920
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 7 over Duck River is a steel continuous stringer/multi-beam or girder carrying FAP 7 over Duck River in Maury County, Tennessee. It was built in 1948, so it is 77 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 5 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 24,920 vehicles a day, roughly 9% of them trucks, projected to reach 42,880 by 2040. The structure is 691 ft (210.6 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAP 7
CrossesDuck River
Location0.19 Mi.N. of SH 7 Lt.
RouteState Highway 7
CountyMaury County
StateTennessee
Coordinates35.6217, -87.0342
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating61.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+9 approach)
Design loadHS 20
Structure length691 ft (210.6 m)
Longest span100 ft (30.5 m)
Deck width37 ft (11.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,920 (2021)
Projected traffic42,880 by 2040
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 7 over Duck River built?

It was built in 1948, making it 77 years old in 2025.

What condition is FAP 7 over Duck River 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 February 2024.

How much traffic does FAP 7 over Duck River carry?

About 24,920 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 7 over Duck River?

The structure is 691 ft (210.6 m) long with a longest span of 100 ft (30.5 m) and a deck 37 ft wide.

Who owns FAP 7 over Duck River?

It is owned by the State Highway Agency.