US Bridges

US70E NC50S over Crabtree Creek

Fair

Wake County, North Carolina · 0.2 Mi. W. Jct. US1 · Structure no. 000000001830084

Built
1931
94 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete
Length
209 ft
4 main spans
Daily traffic
36,250
2021 count
Owner
State
State Highway Agency

About this bridge

US70E NC50S over Crabtree Creek is a concrete tee beam carrying US70E NC50S over Crabtree Creek in Wake County, North Carolina. It was built in 1931, so it is 94 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 36,250 vehicles a day, roughly 12% of them trucks, projected to reach 72,500 by 2040. The structure is 209 ft (63.7 m) long and 61 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS70E NC50S
CrossesCrabtree Creek
Location0.2 Mi. W. Jct. US1
RouteU.S. Route 70
CountyWake County
StateNorth Carolina
Coordinates35.83796, -78.67381
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.9 US tons
Inventory rating23.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length209 ft (63.7 m)
Longest span51 ft (15.5 m)
Deck width61 ft (18.5 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,250 (2021)
Projected traffic72,500 by 2040
Trucks12%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 US70E NC50S over Crabtree Creek built?

It was built in 1931, making it 94 years old in 2025.

What condition is US70E NC50S over Crabtree 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 September 2023.

How much traffic does US70E NC50S over Crabtree Creek carry?

About 36,250 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is US70E NC50S over Crabtree Creek?

The structure is 209 ft (63.7 m) long with a longest span of 51 ft (15.5 m) and a deck 61 ft wide.

Who owns US70E NC50S over Crabtree Creek?

It is owned by the State Highway Agency.