US Bridges

Nfa B350 over Weaver Creek

Fair

Montgomery County, Tennessee · 0.1 M. E. Palmyra · Structure no. 63SR1490003

Built
1960
65 years old
Condition
Fair
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
114 ft
3 main spans
Daily traffic
430
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa B350 over Weaver Creek is a prestressed concrete box beam or girders - multiple carrying Nfa B350 over Weaver Creek in Montgomery County, Tennessee. It was built in 1960, so it is 65 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 430 vehicles a day, roughly 2% of them trucks, projected to reach 688 by 2041. The structure is 114 ft (34.7 m) long and 34 ft wide. If it were closed, the detour would be 46 mi (74 km).

Location

Open in Google Maps
CarriesNfa B350
CrossesWeaver Creek
Location0.1 M. E. Palmyra
RouteCounty Highway 350
CountyMontgomery County
StateTennessee
Coordinates36.4376, -87.48428
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span38 ft (11.6 m)
Deck width34 ft (10.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic430 (2020)
Projected traffic688 by 2041
Trucks2%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B350 over Weaver Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa B350 over Weaver 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 B350 over Weaver Creek carry?

About 430 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa B350 over Weaver Creek?

The structure is 114 ft (34.7 m) long with a longest span of 38 ft (11.6 m) and a deck 34 ft wide.

Who owns Nfa B350 over Weaver Creek?

It is owned by the County Highway Agency.