US Bridges

Nfa A900 over North Fork Rock Creek

Fair

Coffee County, Tennessee · .1 MI from SR 16 · Structure no. 160A3920001

Built
1942
83 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
48 ft
7 main spans
Daily traffic
2,840
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A900 over North Fork Rock Creek is a concrete culvert carrying Nfa A900 over North Fork Rock Creek in Coffee County, Tennessee. It was built in 1942, so it is 83 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 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 2,840 vehicles a day, roughly 2% of them trucks, projected to reach 4,544 by 2040. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A900
CrossesNorth Fork Rock Creek
Location.1 MI from SR 16
RouteCity Street 900
CountyCoffee County
StateTennessee
Coordinates35.37902, -86.23029
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans7
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,840 (2020)
Projected traffic4,544 by 2040
Trucks2%
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 statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$530,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A900 over North Fork Rock Creek built?

It was built in 1942, making it 83 years old in 2025.

What condition is Nfa A900 over North Fork Rock 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 January 2024.

How much traffic does Nfa A900 over North Fork Rock Creek carry?

About 2,840 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A900 over North Fork Rock Creek?

The structure is 48 ft (14.6 m) long with a longest span of 5 ft (1.5 m).

Who owns Nfa A900 over North Fork Rock Creek?

It is owned by the City or Municipal Highway Agency.