US Bridges

Nfa 1958 (sa 7409) over Millers Creek

Good

Robertson County, Tennessee · 3.3 MI NE JCT I24&SR49 · Structure no. 74S62800003

Built
1974
51 years old
Condition
Good
inspected May 2024
Type
Tee Beam
Concrete
Length
56 ft
2 main spans
Daily traffic
339
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1958 (sa 7409) over Millers Creek is a concrete tee beam carrying Nfa 1958 (sa 7409) over Millers Creek in Robertson County, Tennessee. It was built in 1974, so it is 51 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 339 vehicles a day, roughly 3% of them trucks, projected to reach 544 by 2038. The structure is 56 ft (17.1 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa 1958 (sa 7409)
CrossesMillers Creek
Location3.3 MI NE JCT I24&SR49
RouteCounty Highway 1958
Coordinates36.44777, -87.00985
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
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 rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length56 ft (17.1 m)
Longest span26 ft (7.9 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic339 (2021)
Projected traffic544 by 2038
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1958 (sa 7409) over Millers Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Nfa 1958 (sa 7409) over Millers Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does Nfa 1958 (sa 7409) over Millers Creek carry?

About 339 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1958 (sa 7409) over Millers Creek?

The structure is 56 ft (17.1 m) long with a longest span of 26 ft (7.9 m) and a deck 28 ft wide.

Who owns Nfa 1958 (sa 7409) over Millers Creek?

It is owned by the County Highway Agency.