US Bridges

Nfa 1918 over Lytle Creek

Good

Maury County, Tennessee · 1.2 M. Se. Columbia. · Structure no. 60019180001

Built
1990
35 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
57 ft
3 main spans
Daily traffic
1,564
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa 1918 over Lytle Creek is a concrete continuous culvert carrying Nfa 1918 over Lytle Creek in Maury County, Tennessee. It was built in 1990, so it is 35 years old, younger 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 1,564 vehicles a day, roughly 3% of them trucks, projected to reach 2,656 by 2040. The structure is 57 ft (17.4 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNfa 1918
CrossesLytle Creek
Location1.2 M. Se. Columbia.
RouteCounty Highway 1918
Coordinates35.60203, -87.01292
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckWood or timber
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span15 ft (4.6 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,564 (2021)
Projected traffic2,656 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$160,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1918 over Lytle Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nfa 1918 over Lytle 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 1918 over Lytle Creek carry?

About 1,564 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1918 over Lytle Creek?

The structure is 57 ft (17.4 m) long with a longest span of 15 ft (4.6 m) and a deck 30 ft wide.

Who owns Nfa 1918 over Lytle Creek?

It is owned by the City or Municipal Highway Agency.