US Bridges

SR1170 over Mud Creek

Fair

Henderson County, North Carolina · .2 MI.W.JCT.US25 · Structure no. 000000000890229

Built
1987
38 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
90 ft
2 main spans
Daily traffic
60
1996 count
Owner
State
State Highway Agency

About this bridge

SR1170 over Mud Creek is a prestressed concrete slab carrying SR1170 over Mud Creek in Henderson County, North Carolina. It was built in 1987, so it is 38 years old, younger than the North Carolina average of 38.7 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 60 vehicles a day, roughly 7% of them trucks, projected to reach 120 by 2040. The structure is 90 ft (27.4 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1170
CrossesMud Creek
Location.2 MI.W.JCT.US25
RouteState Highway 1170
Coordinates35.30654, -82.45965
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length90 ft (27.4 m)
Longest span43 ft (13.1 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (1996)
Projected traffic120 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1170 over Mud Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is SR1170 over Mud 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 SR1170 over Mud Creek carry?

About 60 vehicles per day (1996 count), of which roughly 7% are trucks.

How long is SR1170 over Mud Creek?

The structure is 90 ft (27.4 m) long with a longest span of 43 ft (13.1 m) and a deck 33 ft wide.

Who owns SR1170 over Mud Creek?

It is owned by the State Highway Agency.