US Bridges

Nfa A831 over Myatt Creek (cwma)

FairPosted for load

Cumberland County, Tennessee · 5 M North of I40 · Structure no. 180A1510003

Built
1989
36 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
200
2020 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Nfa A831 over Myatt Creek (cwma) is a steel stringer/multi-beam or girder carrying Nfa A831 over Myatt Creek (cwma) in Cumberland 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 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 200 vehicles a day, roughly 2% of them trucks, projected to reach 320 by 2042. The structure is 23 ft (6.9 m) long and 16 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNfa A831
CrossesMyatt Creek (cwma)
Location5 M North of I40
RouteCounty Highway 831
CountyCumberland County
StateTennessee
Coordinates36.12981, -84.98157
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating5.4 US tons
Inventory rating4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length23 ft (6.9 m)
Longest span22 ft (6.7 m)
Deck width16 ft (4.9 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2020)
Projected traffic320 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$424,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A831 over Myatt Creek (cwma) built?

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

What condition is Nfa A831 over Myatt Creek (cwma) 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 February 2024.

How much traffic does Nfa A831 over Myatt Creek (cwma) carry?

About 200 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A831 over Myatt Creek (cwma)?

The structure is 23 ft (6.9 m) long with a longest span of 22 ft (6.7 m) and a deck 16 ft wide.

Who owns Nfa A831 over Myatt Creek (cwma)?

It is owned by the State Park, Forest, or Reservation Agency.