US Bridges

Nfa A036 over Mill Creek

Fair

Obion County, Tennessee · 2.8 MI NW JCT SR21&SR184 · Structure no. 660A0360001

Built
1975
50 years old, rebuilt 2006
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
110
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A036 over Mill Creek is a prestressed concrete box beam or girders - multiple carrying Nfa A036 over Mill Creek in Obion County, Tennessee. It was built in 1975 and reconstructed in 2006, 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 6 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 110 vehicles a day, roughly 4% of them trucks, projected to reach 176 by 2041. The structure is 76 ft (23.2 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesNfa A036
CrossesMill Creek
Location2.8 MI NW JCT SR21&SR184
RouteCounty Highway 36
CountyObion County
StateTennessee
Coordinates36.35008, -89.21217
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1 (+2 approach)
Design loadH 15
Structure length76 ft (23.2 m)
Longest span38 ft (11.5 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic176 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 A036 over Mill Creek built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2006.

What condition is Nfa A036 over Mill 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 2023.

How much traffic does Nfa A036 over Mill Creek carry?

About 110 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A036 over Mill Creek?

The structure is 76 ft (23.2 m) long with a longest span of 38 ft (11.5 m) and a deck 26 ft wide.

Who owns Nfa A036 over Mill Creek?

It is owned by the County Highway Agency.