US Bridges

SR1647 over Drowning Creek

Good

Burke County, North Carolina · 0.3 MI.S.JCT.SR1655 · Structure no. 000000000230210

Built
1996
29 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
196 ft
3 main spans
Daily traffic
2,300
2021 count
Owner
State
State Highway Agency

About this bridge

SR1647 over Drowning Creek is a prestressed concrete stringer/multi-beam or girder carrying SR1647 over Drowning Creek in Burke County, North Carolina. It was built in 1996, so it is 29 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 2,300 vehicles a day, roughly 7% of them trucks, projected to reach 4,600 by 2040. The structure is 196 ft (59.7 m) long and 44 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesSR1647
CrossesDrowning Creek
Location0.3 MI.S.JCT.SR1655
RouteState Highway 1647
Coordinates35.74664, -81.41611
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
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 rating67.9 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length196 ft (59.7 m)
Longest span69 ft (21 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2021)
Projected traffic4,600 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1647 over Drowning Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is SR1647 over Drowning Creek 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 December 2023.

How much traffic does SR1647 over Drowning Creek carry?

About 2,300 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1647 over Drowning Creek?

The structure is 196 ft (59.7 m) long with a longest span of 69 ft (21 m) and a deck 44 ft wide.

Who owns SR1647 over Drowning Creek?

It is owned by the State Highway Agency.