US Bridges

Nfa 1433 (sa 6602) over Rock Creek

Fair

Obion County, Tennessee · 2 MI E of Lake Co. · Structure no. 66S81650005

Built
1959
66 years old, rebuilt 2013
Condition
Fair
inspected March 2023
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
610
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1433 (sa 6602) over Rock Creek is a concrete channel beam carrying Nfa 1433 (sa 6602) over Rock Creek in Obion County, Tennessee. It was built in 1959 and reconstructed in 2013, so it is 66 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 610 vehicles a day, roughly 3% of them trucks, projected to reach 1,072 by 2041. The structure is 57 ft (17.4 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 1433 (sa 6602)
CrossesRock Creek
Location2 MI E of Lake Co.
RouteCounty Highway 1433
CountyObion County
StateTennessee
Coordinates36.28708, -89.40947
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating27.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2021)
Projected traffic1,072 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$166,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1433 (sa 6602) over Rock Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2013.

What condition is Nfa 1433 (sa 6602) over 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 March 2023.

How much traffic does Nfa 1433 (sa 6602) over Rock Creek carry?

About 610 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1433 (sa 6602) over Rock Creek?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Nfa 1433 (sa 6602) over Rock Creek?

It is owned by the County Highway Agency.