US Bridges

FAP 73 over Grubb Creek

Good

Loudon County, Tennessee · .3 M SW of Manis RD · Structure no. 53SR0730017

Built
1983
42 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
9,275
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 73 over Grubb Creek is a concrete continuous culvert carrying FAP 73 over Grubb Creek in Loudon County, Tennessee. It was built in 1983, so it is 42 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 9,275 vehicles a day, roughly 6% of them trucks, projected to reach 13,792 by 2041. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 10.6 mi (17 km).

CarriesFAP 73
CrossesGrubb Creek
Location.3 M SW of Manis RD
RouteState Highway 73
Coordinates35.8629, -84.32426
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: 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
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,275 (2021)
Projected traffic13,792 by 2041
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$398,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 73 over Grubb Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is FAP 73 over Grubb Creek 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 February 2025.

How much traffic does FAP 73 over Grubb Creek carry?

About 9,275 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAP 73 over Grubb Creek?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.4 m).

Who owns FAP 73 over Grubb Creek?

It is owned by the State Highway Agency.