US Bridges

SR1644 over Little Briar Creek

Fair

Wake County, North Carolina · 0.1 Mi. N. Jct. SR1002 · Structure no. 000000001830329

Built
1982
43 years old
Condition
Fair
inspected August 2023
Type
Culvert
Steel
Length
31 ft
2 main spans
Daily traffic
800
1993 count
Owner
State
State Highway Agency

About this bridge

SR1644 over Little Briar Creek is a steel culvert carrying SR1644 over Little Briar Creek in Wake County, North Carolina. It was built in 1982, so it is 43 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 800 vehicles a day, roughly 7% of them trucks, projected to reach 1,663 by 2040. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSR1644
CrossesLittle Briar Creek
Location0.1 Mi. N. Jct. SR1002
RouteState Highway 1644
CountyWake County
StateNorth Carolina
Coordinates35.88775, -78.79947
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length31 ft (9.4 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (1993)
Projected traffic1,663 by 2040
Trucks7%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1644 over Little Briar Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is SR1644 over Little Briar Creek 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 August 2023.

How much traffic does SR1644 over Little Briar Creek carry?

About 800 vehicles per day (1993 count), of which roughly 7% are trucks.

How long is SR1644 over Little Briar Creek?

The structure is 31 ft (9.4 m) long with a longest span of 13 ft (3.9 m).

Who owns SR1644 over Little Briar Creek?

It is owned by the State Highway Agency.