US Bridges

SR1177 over Piney Fork Creek

Fair

Alleghany County, North Carolina · .1 MI.S.JCT.NC18 · Structure no. 000000000050262

Built
2005
20 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
60
2022 count
Owner
State
State Highway Agency

About this bridge

SR1177 over Piney Fork Creek is a steel stringer/multi-beam or girder carrying SR1177 over Piney Fork Creek in Alleghany County, North Carolina. It was built in 2005, so it is 20 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 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 60 vehicles a day, projected to reach 120 by 2040. The structure is 43 ft (13.1 m) long and 20 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR1177
CrossesPiney Fork Creek
Location.1 MI.S.JCT.NC18
RouteState Highway 1177
CountyAlleghany County
StateNorth Carolina
Coordinates36.4284, -81.23337
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span39 ft (11.8 m)
Deck width20 ft (6 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic120 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 SR1177 over Piney Fork Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is SR1177 over Piney Fork 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 SR1177 over Piney Fork Creek carry?

About 60 vehicles per day (2022 count).

How long is SR1177 over Piney Fork Creek?

The structure is 43 ft (13.1 m) long with a longest span of 39 ft (11.8 m) and a deck 20 ft wide.

Who owns SR1177 over Piney Fork Creek?

It is owned by the State Highway Agency.