US Bridges

NC108 over Green River

Fair

Polk County, North Carolina · 1.2 Mi. W. Jct. SR1157 · Structure no. 000000001490057

Built
1926
99 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete
Length
208 ft
4 main spans
Daily traffic
1,100
2022 count
Owner
State
State Highway Agency

About this bridge

NC108 over Green River is a concrete tee beam carrying NC108 over Green River in Polk County, North Carolina. It was built in 1926, so it is 99 years old, older 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 1,100 vehicles a day, roughly 7% of them trucks, projected to reach 2,200 by 2040. The structure is 208 ft (63.3 m) long and 23 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesNC108
CrossesGreen River
Location1.2 Mi. W. Jct. SR1157
RouteState Highway 108
CountyPolk County
StateNorth Carolina
Coordinates35.32653, -82.07301
Functional classRural Major 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating25.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length208 ft (63.3 m)
Longest span51 ft (15.5 m)
Deck width23 ft (7 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic2,200 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NC108 over Green River built?

It was built in 1926, making it 99 years old in 2025.

What condition is NC108 over Green River 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 2023.

How much traffic does NC108 over Green River carry?

About 1,100 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is NC108 over Green River?

The structure is 208 ft (63.3 m) long with a longest span of 51 ft (15.5 m) and a deck 23 ft wide.

Who owns NC108 over Green River?

It is owned by the State Highway Agency.