US Bridges

Nfa A172 (sa 4509) over Lost Creek

Fair

Jefferson County, Tennessee · On US 11E Row-New Market · Structure no. 45S24650003

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Channel Beam
Concrete
Length
29 ft
1 main span
Daily traffic
3,460
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A172 (sa 4509) over Lost Creek is a concrete channel beam carrying Nfa A172 (sa 4509) over Lost Creek in Jefferson County, Tennessee. It was built in 1965, so it is 60 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 5 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 3,460 vehicles a day, roughly 9% of them trucks, projected to reach 5,536 by 2042. The structure is 29 ft (8.7 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A172 (sa 4509)
CrossesLost Creek
LocationOn US 11E Row-New Market
RouteCity Street 172
CountyJefferson County
StateTennessee
Coordinates36.10142, -83.55225
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating42.5 US tons
Inventory rating25.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length29 ft (8.7 m)
Longest span26 ft (8 m)
Deck width37 ft (11.3 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,460 (2020)
Projected traffic5,536 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$290,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A172 (sa 4509) over Lost Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nfa A172 (sa 4509) over Lost 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 May 2023.

How much traffic does Nfa A172 (sa 4509) over Lost Creek carry?

About 3,460 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Nfa A172 (sa 4509) over Lost Creek?

The structure is 29 ft (8.7 m) long with a longest span of 26 ft (8 m) and a deck 37 ft wide.

Who owns Nfa A172 (sa 4509) over Lost Creek?

It is owned by the City or Municipal Highway Agency.