US Bridges

Nfa A790 349491U over Cfw Railroad

Good

Warren County, Tennessee · 2MI East of SR56 · Structure no. 890A7900001

Built
1989
36 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
170 ft
3 main spans
Daily traffic
730
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A790 349491U over Cfw Railroad is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A790 349491U over Cfw Railroad in Warren County, Tennessee. It was built in 1989, so it is 36 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 730 vehicles a day, roughly 2% of them trucks, projected to reach 1,168 by 2042. The structure is 170 ft (51.9 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNfa A790 349491U
CrossesCfw Railroad
Location2MI East of SR56
RouteCity Street 790
Coordinates35.66658, -85.79522
Functional classUrban Local

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.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length170 ft (51.9 m)
Longest span48 ft (14.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic730 (2020)
Projected traffic1,168 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$310,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A790 349491U over Cfw Railroad built?

It was built in 1989, making it 36 years old in 2025.

What condition is Nfa A790 349491U over Cfw Railroad 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 March 2023.

How much traffic does Nfa A790 349491U over Cfw Railroad carry?

About 730 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A790 349491U over Cfw Railroad?

The structure is 170 ft (51.9 m) long with a longest span of 48 ft (14.5 m) and a deck 30 ft wide.

Who owns Nfa A790 349491U over Cfw Railroad?

It is owned by the City or Municipal Highway Agency.