US Bridges

FAS 9 over Koontz Creek

PoorPosted for load

Jefferson County, Tennessee · .4 M E of Oak Grove · Structure no. 45SR0090011

Built
1930
95 years old, rebuilt 1957
Condition
Poor
inspected October 2023
Type
Tee Beam
Concrete
Length
132 ft
4 main spans
Daily traffic
7,782
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 9 over Koontz Creek is a concrete tee beam carrying FAS 9 over Koontz Creek in Jefferson County, Tennessee. It was built in 1930 and reconstructed in 1957, so it is 95 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 7,782 vehicles a day, roughly 5% of them trucks, projected to reach 12,451 by 2042. The structure is 132 ft (40.2 m) long and 35 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesFAS 9
CrossesKoontz Creek
Location.4 M E of Oak Grove
RouteU.S. Route 25
Coordinates36.03458, -83.3818
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length132 ft (40.2 m)
Longest span32 ft (9.8 m)
Deck width35 ft (10.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,782 (2021)
Projected traffic12,451 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 9 over Koontz Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1957.

What condition is FAS 9 over Koontz Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does FAS 9 over Koontz Creek carry?

About 7,782 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 9 over Koontz Creek?

The structure is 132 ft (40.2 m) long with a longest span of 32 ft (9.8 m) and a deck 35 ft wide.

Who owns FAS 9 over Koontz Creek?

It is owned by the State Highway Agency.