US Bridges

Nfa 929 (sa 5116) over Rockhouse Creek

Fair

Lewis County, Tennessee · Rockhouse RD in Lewis CO · Structure no. 510A1100001

Built
1994
31 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
72 ft
3 main spans
Daily traffic
97
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 929 (sa 5116) over Rockhouse Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa 929 (sa 5116) over Rockhouse Creek in Lewis County, Tennessee. It was built in 1994, so it is 31 years old, younger 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 5 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 97 vehicles a day, roughly 2% of them trucks, projected to reach 334 by 2041. The structure is 72 ft (21.9 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa 929 (sa 5116)
CrossesRockhouse Creek
LocationRockhouse RD in Lewis CO
RouteCounty Highway 929
CountyLewis County
StateTennessee
Coordinates35.45939, -87.60868
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating84.3 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 loadHS 20
Structure length72 ft (21.9 m)
Longest span24 ft (7.3 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97 (2021)
Projected traffic334 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 929 (sa 5116) over Rockhouse Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Nfa 929 (sa 5116) over Rockhouse 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 June 2023.

How much traffic does Nfa 929 (sa 5116) over Rockhouse Creek carry?

About 97 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Nfa 929 (sa 5116) over Rockhouse Creek?

The structure is 72 ft (21.9 m) long with a longest span of 24 ft (7.3 m) and a deck 24 ft wide.

Who owns Nfa 929 (sa 5116) over Rockhouse Creek?

It is owned by the County Highway Agency.