US Bridges

Nfa A437 over Gattis Creek

FairPosted for load

Hardin County, Tennessee · Seay RD City of Crump · Structure no. 360A4370001

Built
1970
55 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
22 ft
1 main span
Daily traffic
300
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A437 over Gattis Creek is a steel stringer/multi-beam or girder carrying Nfa A437 over Gattis Creek in Hardin County, Tennessee. It was built in 1970, so it is 55 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 300 vehicles a day, roughly 4% of them trucks, projected to reach 480 by 2042. The structure is 22 ft (6.8 m) long and 21 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A437
CrossesGattis Creek
LocationSeay RD City of Crump
RouteCity Street 437
CountyHardin County
StateTennessee
Coordinates35.20367, -88.3393
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.8 US tons
Inventory rating17.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length22 ft (6.8 m)
Longest span22 ft (6.8 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2020)
Projected traffic480 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$406,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A437 over Gattis Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A437 over Gattis Creek 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 March 2024.

How much traffic does Nfa A437 over Gattis Creek carry?

About 300 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A437 over Gattis Creek?

The structure is 22 ft (6.8 m) long with a longest span of 22 ft (6.8 m) and a deck 21 ft wide.

Who owns Nfa A437 over Gattis Creek?

It is owned by the City or Municipal Highway Agency.