US Bridges

Nfa 1884 (sa 7404) over Red River

Fair

Robertson County, Tennessee · .9 MI NE JCT SR11&SR76 · Structure no. 74018840003

Built
1975
50 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
369 ft
3 main spans
Daily traffic
593
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1884 (sa 7404) over Red River is a steel continuous stringer/multi-beam or girder carrying Nfa 1884 (sa 7404) over Red River in Robertson County, Tennessee. It was built in 1975, so it is 50 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 593 vehicles a day, roughly 3% of them trucks, projected to reach 982 by 2042. The structure is 369 ft (112.5 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesNfa 1884 (sa 7404)
CrossesRed River
Location.9 MI NE JCT SR11&SR76
RouteCounty Highway 1884
CountyRobertson County
StateTennessee
Coordinates36.59474, -87.06019
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
Deck7 GoodSome minor problems.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length369 ft (112.5 m)
Longest span135 ft (41.1 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic593 (2021)
Projected traffic982 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 1884 (sa 7404) over Red River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa 1884 (sa 7404) over Red 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 April 2024.

How much traffic does Nfa 1884 (sa 7404) over Red River carry?

About 593 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1884 (sa 7404) over Red River?

The structure is 369 ft (112.5 m) long with a longest span of 135 ft (41.1 m) and a deck 32 ft wide.

Who owns Nfa 1884 (sa 7404) over Red River?

It is owned by the County Highway Agency.