US Bridges

Road 911 over Madd Creek

FairPosted for load

Sullivan County, Tennessee · Holston Aap Plant a · Structure no. DAPAMCHOL000002

Built
1950
75 years old, rebuilt 1964
Condition
Fair
inspected July 2024
Type
Channel Beam
Concrete
Length
53 ft
3 main spans
Daily traffic
50
2016 count
Owner
Federal
Army

About this bridge

Road 911 over Madd Creek is a concrete channel beam carrying Road 911 over Madd Creek in Sullivan County, Tennessee. It was built in 1950 and reconstructed in 1964, so it is 75 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 75 by 2046. The structure is 53 ft (16.2 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoad 911
CrossesMadd Creek
LocationHolston Aap Plant a
CountySullivan County
StateTennessee
Coordinates36.53033, -82.55182
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans3
Design loadH 15
Structure length53 ft (16.2 m)
Longest span18 ft (5.5 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2016)
Projected traffic75 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$31,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Road 911 over Madd Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1964.

What condition is Road 911 over Madd 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 July 2024.

How much traffic does Road 911 over Madd Creek carry?

About 50 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is Road 911 over Madd Creek?

The structure is 53 ft (16.2 m) long with a longest span of 18 ft (5.5 m) and a deck 25 ft wide.

Who owns Road 911 over Madd Creek?

It is owned by the Army.