US Bridges

SR1947 over Br. of Waccamaw Riv.

Good

Columbus County, North Carolina · 1.6MI.E. of JCT.SR1757 · Structure no. 000000000470364

Built
2010
15 years old
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
650
2022 count
Owner
State
State Highway Agency

About this bridge

SR1947 over Br. of Waccamaw Riv. is a prestressed concrete slab carrying SR1947 over Br. of Waccamaw Riv. in Columbus County, North Carolina. It was built in 2010, so it is 15 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 650 vehicles a day, roughly 6% of them trucks, projected to reach 1,300 by 2040. The structure is 120 ft (36.5 m) long and 39 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSR1947
CrossesBr. of Waccamaw Riv.
Location1.6MI.E. of JCT.SR1757
RouteState Highway 1947
CountyColumbus County
StateNorth Carolina
Coordinates34.29228, -78.47203
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating52.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length120 ft (36.5 m)
Longest span49 ft (14.9 m)
Deck width39 ft (11.9 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2022)
Projected traffic1,300 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 SR1947 over Br. of Waccamaw Riv. built?

It was built in 2010, making it 15 years old in 2025.

What condition is SR1947 over Br. of Waccamaw Riv. in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does SR1947 over Br. of Waccamaw Riv. carry?

About 650 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1947 over Br. of Waccamaw Riv.?

The structure is 120 ft (36.5 m) long with a longest span of 49 ft (14.9 m) and a deck 39 ft wide.

Who owns SR1947 over Br. of Waccamaw Riv.?

It is owned by the State Highway Agency.