US Bridges

Nfa 1986 over New Lake Branch

Good

Marshall County, Tennessee · 2.5 MI SW JCT SR50&SR373 · Structure no. 59019860009

Built
2011
14 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
482
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1986 over New Lake Branch is a concrete continuous culvert carrying Nfa 1986 over New Lake Branch in Marshall County, Tennessee. It was built in 2011, so it is 14 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 482 vehicles a day, roughly 3% of them trucks, projected to reach 544 by 2040. The structure is 24 ft (7.3 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa 1986
CrossesNew Lake Branch
Location2.5 MI SW JCT SR50&SR373
RouteCounty Highway 1986
Coordinates35.40315, -86.83715
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span8 ft (2.4 m)
Deck width33 ft (10 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic482 (2021)
Projected traffic544 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 1986 over New Lake Branch built?

It was built in 2011, making it 14 years old in 2025.

What condition is Nfa 1986 over New Lake Branch 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 June 2024.

How much traffic does Nfa 1986 over New Lake Branch carry?

About 482 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1986 over New Lake Branch?

The structure is 24 ft (7.3 m) long with a longest span of 8 ft (2.4 m) and a deck 33 ft wide.

Who owns Nfa 1986 over New Lake Branch?

It is owned by the County Highway Agency.