US Bridges

FAP 11 over Duck River

FairPosted for load

Marshall County, Tennessee · .5 S JCT SR99&SR11 · Structure no. 59SR0110029

Built
1965
60 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
436 ft
4 main spans
Daily traffic
6,883
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 11 over Duck River is a steel continuous stringer/multi-beam or girder carrying FAP 11 over Duck River in Marshall County, Tennessee. It was built in 1965, so it is 60 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. Its operating status is: posted for load restriction.

It carries about 6,883 vehicles a day, roughly 6% of them trucks, projected to reach 11,312 by 2041. The structure is 436 ft (132.9 m) long and 37 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesFAP 11
CrossesDuck River
Location.5 S JCT SR99&SR11
RouteU.S. Route 31
CountyMarshall County
StateTennessee
Coordinates35.59243, -86.69644
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating17.5 US tons
Inventory rating13.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length436 ft (132.9 m)
Longest span121 ft (36.9 m)
Deck width37 ft (11.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,883 (2021)
Projected traffic11,312 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$5.2 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 11 over Duck River built?

It was built in 1965, making it 60 years old in 2025.

What condition is FAP 11 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 September 2024.

How much traffic does FAP 11 over Duck River carry?

About 6,883 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAP 11 over Duck River?

The structure is 436 ft (132.9 m) long with a longest span of 121 ft (36.9 m) and a deck 37 ft wide.

Who owns FAP 11 over Duck River?

It is owned by the State Highway Agency.