US Bridges

SR1646 over Falling Creek

Good

Richmond County, North Carolina · 0.5 Mi. S. Jct. US1 · Structure no. 000000001530169

Built
1968
57 years old, rebuilt 1987
Condition
Good
inspected February 2025
Type
Culvert
Concrete Continuous
Length
37 ft
3 main spans
Daily traffic
16,000
2021 count
Owner
State
State Highway Agency

About this bridge

SR1646 over Falling Creek is a concrete continuous culvert carrying SR1646 over Falling Creek in Richmond County, North Carolina. It was built in 1968 and reconstructed in 1987, so it is 57 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 16,000 vehicles a day, roughly 6% of them trucks, projected to reach 32,000 by 2040. The structure is 37 ft (11.2 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1646
CrossesFalling Creek
Location0.5 Mi. S. Jct. US1
RouteState Highway 1646
Coordinates34.93808, -79.75399
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.9 US tons
Inventory rating38.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length37 ft (11.2 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2021)
Projected traffic32,000 by 2040
Trucks6%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 SR1646 over Falling Creek built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1987.

What condition is SR1646 over Falling 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 February 2025.

How much traffic does SR1646 over Falling Creek carry?

About 16,000 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1646 over Falling Creek?

The structure is 37 ft (11.2 m) long with a longest span of 12 ft (3.6 m).

Who owns SR1646 over Falling Creek?

It is owned by the State Highway Agency.