US Bridges

Nfa A663 over Crowson Creek

Fair

Lawrence County, Tennessee · 4.2 M. Nw. Lawrenceburg. · Structure no. 500A0640001

Built
1975
50 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
290
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A663 over Crowson Creek is a steel stringer/multi-beam or girder carrying Nfa A663 over Crowson Creek in Lawrence County, Tennessee. It was built in 1975, 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 290 vehicles a day, roughly 2% of them trucks, projected to reach 464 by 2042. The structure is 60 ft (18.3 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa A663
CrossesCrowson Creek
Location4.2 M. Nw. Lawrenceburg.
RouteCounty Highway 663
CountyLawrence County
StateTennessee
Coordinates35.27816, -87.38855
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating19 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span59 ft (17.9 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (2020)
Projected traffic464 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$250,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A663 over Crowson Creek built?

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

What condition is Nfa A663 over Crowson 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 June 2023.

How much traffic does Nfa A663 over Crowson Creek carry?

About 290 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A663 over Crowson Creek?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (17.9 m) and a deck 20 ft wide.

Who owns Nfa A663 over Crowson Creek?

It is owned by the County Highway Agency.