US Bridges

Nfa E550 over Mansker Creek

Fair

Davidson County, Tennessee · Sumner-Davidson CO Line · Structure no. 190E5500001

Built
1986
39 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
48 ft
3 main spans
Daily traffic
100
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa E550 over Mansker Creek is a concrete continuous culvert carrying Nfa E550 over Mansker Creek in Davidson County, Tennessee. It was built in 1986, so it is 39 years old, younger 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 100 vehicles a day, roughly 1% of them trucks, projected to reach 160 by 2041. The structure is 48 ft (14.6 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa E550
CrossesMansker Creek
LocationSumner-Davidson CO Line
RouteCity Street 550
CountyDavidson County
StateTennessee
Coordinates36.35129, -86.72279
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than 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
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span15 ft (4.6 m)
Deck width35 ft (10.8 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic160 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa E550 over Mansker Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nfa E550 over Mansker 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 August 2023.

How much traffic does Nfa E550 over Mansker Creek carry?

About 100 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa E550 over Mansker Creek?

The structure is 48 ft (14.6 m) long with a longest span of 15 ft (4.6 m) and a deck 35 ft wide.

Who owns Nfa E550 over Mansker Creek?

It is owned by the City or Municipal Highway Agency.