US Bridges

Nfa 2122 over Old Obion River Bed

GoodClosed to traffic

Obion County, Tennessee · 5.3 MI N of Gibson Co. · Structure no. 66F00250003

Built
2021
4 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
242
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2122 over Old Obion River Bed is a prestressed concrete box beam or girders - single or spread carrying Nfa 2122 over Old Obion River Bed in Obion County, Tennessee. It was built in 2021, so it is 4 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. Its operating status is: closed to all traffic.

It carries about 242 vehicles a day, roughly 3% of them trucks, projected to reach 363 by 2042. The structure is 90 ft (27.4 m) long and 29 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesNfa 2122
CrossesOld Obion River Bed
Location5.3 MI N of Gibson Co.
RouteCounty Highway 2122
Coordinates36.27472, -89.12297
Functional classRural Minor Collector

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length90 ft (27.4 m)
Longest span90 ft (27.4 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic242 (2021)
Projected traffic363 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2122 over Old Obion River Bed built?

It was built in 2021, making it 4 years old in 2025.

What condition is Nfa 2122 over Old Obion River Bed 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 2122 over Old Obion River Bed carry?

About 242 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2122 over Old Obion River Bed?

The structure is 90 ft (27.4 m) long with a longest span of 90 ft (27.4 m) and a deck 29 ft wide.

Who owns Nfa 2122 over Old Obion River Bed?

It is owned by the County Highway Agency.