US Bridges

Nfa 1861 over Antioch Creek

FairPosted for load

Montgomery County, Tennessee · 3 MI E Palmyra · Structure no. 63SR1490009

Built
1940
85 years old, rebuilt 1988
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
648
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1861 over Antioch Creek is a steel stringer/multi-beam or girder carrying Nfa 1861 over Antioch Creek in Montgomery County, Tennessee. It was built in 1940 and reconstructed in 1988, so it is 85 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 648 vehicles a day, roughly 1% of them trucks, projected to reach 912 by 2041. The structure is 48 ft (14.6 m) long and 28 ft wide. If it were closed, the detour would be 46 mi (74 km).

Location

Open in Google Maps
CarriesNfa 1861
CrossesAntioch Creek
Location3 MI E Palmyra
RouteCounty Highway 1861
CountyMontgomery County
StateTennessee
Coordinates36.44805, -87.42664
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating16.4 US tons
Inventory rating12.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length48 ft (14.6 m)
Longest span47 ft (14.3 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic648 (2021)
Projected traffic912 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed46 mi (74 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$121,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1861 over Antioch Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1988.

What condition is Nfa 1861 over Antioch 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 November 2024.

How much traffic does Nfa 1861 over Antioch Creek carry?

About 648 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Nfa 1861 over Antioch Creek?

The structure is 48 ft (14.6 m) long with a longest span of 47 ft (14.3 m) and a deck 28 ft wide.

Who owns Nfa 1861 over Antioch Creek?

It is owned by the County Highway Agency.