US Bridges

Lassiter Mill Rd. over Crabtree Creek

Good

Wake County, North Carolina · 0.9MI.S.JCT.SIX Forks Rd. · Structure no. 000000001830334

Built
1961
64 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
180 ft
3 main spans
Daily traffic
10,500
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lassiter Mill Rd. over Crabtree Creek is a prestressed concrete stringer/multi-beam or girder carrying Lassiter Mill Rd. over Crabtree Creek in Wake County, North Carolina. It was built in 1961, so it is 64 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 10,500 vehicles a day, roughly 7% of them trucks, projected to reach 21,000 by 2040. The structure is 180 ft (54.8 m) long and 52 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLassiter Mill Rd.
CrossesCrabtree Creek
Location0.9MI.S.JCT.SIX Forks Rd.
RouteCity Street 0
Coordinates35.82599, -78.64922
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length180 ft (54.8 m)
Longest span58 ft (17.6 m)
Deck width52 ft (15.8 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2021)
Projected traffic21,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Lassiter Mill Rd. over Crabtree Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is Lassiter Mill Rd. over Crabtree 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 2024.

How much traffic does Lassiter Mill Rd. over Crabtree Creek carry?

About 10,500 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Lassiter Mill Rd. over Crabtree Creek?

The structure is 180 ft (54.8 m) long with a longest span of 58 ft (17.6 m) and a deck 52 ft wide.

Who owns Lassiter Mill Rd. over Crabtree Creek?

It is owned by the City or Municipal Highway Agency.