US Bridges

SR 73 over Greenbrier Creek

Good

Cocke County, Tennessee · 1 M SE of JCT SR32 & SR73 · Structure no. 15SR0730003

Built
1948
77 years old, rebuilt 2022
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
86 ft
3 main spans
Daily traffic
6,723
2021 count
Owner
State
State Highway Agency

About this bridge

SR 73 over Greenbrier Creek is a prestressed concrete continuous box beam or girders - single or spread carrying SR 73 over Greenbrier Creek in Cocke County, Tennessee. It was built in 1948 and reconstructed in 2022, so it is 77 years old, older 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 6,723 vehicles a day, roughly 6% of them trucks, projected to reach 10,757 by 2042. The structure is 86 ft (26.1 m) long and 32 ft wide. If it were closed, the detour would be 42.3 mi (68 km).

Location

Open in Google Maps
CarriesSR 73
CrossesGreenbrier Creek
Location1 M SE of JCT SR32 & SR73
RouteState Highway 73
CountyCocke County
StateTennessee
Coordinates35.7805, -83.2429
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length86 ft (26.1 m)
Longest span29 ft (8.7 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,723 (2021)
Projected traffic10,757 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.3 mi (68 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 73 over Greenbrier Creek built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 2022.

What condition is SR 73 over Greenbrier 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 August 2023.

How much traffic does SR 73 over Greenbrier Creek carry?

About 6,723 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR 73 over Greenbrier Creek?

The structure is 86 ft (26.1 m) long with a longest span of 29 ft (8.7 m) and a deck 32 ft wide.

Who owns SR 73 over Greenbrier Creek?

It is owned by the State Highway Agency.