US Bridges

SR1644 over Black Creek

Good

Wilson County, North Carolina · 0.5MI.S. JCT.SR1645 · Structure no. 000000001950024

Built
1986
39 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete Continuous
Length
142 ft
4 main spans
Daily traffic
100
2019 count
Owner
State
State Highway Agency

About this bridge

SR1644 over Black Creek is a concrete continuous slab carrying SR1644 over Black Creek in Wilson County, North Carolina. It was built in 1986, so it is 39 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 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 100 vehicles a day, roughly 6% of them trucks, projected to reach 200 by 2040. The structure is 142 ft (43.2 m) long and 27 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesSR1644
CrossesBlack Creek
Location0.5MI.S. JCT.SR1645
RouteState Highway 1644
Coordinates35.63803, -77.97135
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 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 rating57 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length142 ft (43.2 m)
Longest span34 ft (10.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2019)
Projected traffic200 by 2040
Trucks6%
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 SR1644 over Black Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is SR1644 over Black 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 July 2023.

How much traffic does SR1644 over Black Creek carry?

About 100 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is SR1644 over Black Creek?

The structure is 142 ft (43.2 m) long with a longest span of 34 ft (10.3 m) and a deck 27 ft wide.

Who owns SR1644 over Black Creek?

It is owned by the State Highway Agency.