US Bridges

Nfa 1493 (sa 4923) over Mill Creek

FairPosted for load

Lauderdale County, Tennessee · 5 Mi. W. of Halls · Structure no. 49014930001

Built
1960
65 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
87 ft
3 main spans
Daily traffic
543
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1493 (sa 4923) over Mill Creek is a concrete tee beam carrying Nfa 1493 (sa 4923) over Mill Creek in Lauderdale 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. Its operating status is: posted for load restriction.

It carries about 543 vehicles a day, roughly 3% of them trucks, projected to reach 869 by 2042. The structure is 87 ft (26.5 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 1493 (sa 4923)
CrossesMill Creek
Location5 Mi. W. of Halls
RouteCounty Highway 1493
CountyLauderdale County
StateTennessee
Coordinates35.90186, -89.48197
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating25.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length87 ft (26.5 m)
Longest span29 ft (8.8 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic543 (2021)
Projected traffic869 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 with deck rehabilitation or replacement
Estimated improvement cost$190,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1493 (sa 4923) over Mill Creek built?

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

What condition is Nfa 1493 (sa 4923) 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 November 2023.

How much traffic does Nfa 1493 (sa 4923) over Mill Creek carry?

About 543 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1493 (sa 4923) over Mill Creek?

The structure is 87 ft (26.5 m) long with a longest span of 29 ft (8.8 m) and a deck 29 ft wide.

Who owns Nfa 1493 (sa 4923) over Mill Creek?

It is owned by the County Highway Agency.