US Bridges

US70BUS. over US15BYP US501BYP

Fair

Durham County, North Carolina · 0.27 MI.E.JCT.SR1401&US70 · Structure no. 000000000630032

Built
1991
34 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
241 ft
4 main spans
Daily traffic
23,000
2021 count
Owner
State
State Highway Agency

About this bridge

US70BUS. over US15BYP US501BYP is a steel stringer/multi-beam or girder carrying US70BUS. over US15BYP US501BYP in Durham County, North Carolina. It was built in 1991, so it is 34 years old, younger 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 6 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 23,000 vehicles a day, roughly 6% of them trucks, projected to reach 46,000 by 2040. The structure is 241 ft (73.4 m) long and 88 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS70BUS.
CrossesUS15BYP US501BYP
Location0.27 MI.E.JCT.SR1401&US70
RouteU.S. Route 70
CountyDurham County
StateNorth Carolina
Coordinates36.02078, -78.94921
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating61 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length241 ft (73.4 m)
Longest span98 ft (29.8 m)
Deck width88 ft (26.9 m)
Roadway width76 ft (23.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,000 (2021)
Projected traffic46,000 by 2040
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US70BUS. over US15BYP US501BYP built?

It was built in 1991, making it 34 years old in 2025.

What condition is US70BUS. over US15BYP US501BYP 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 March 2023.

How much traffic does US70BUS. over US15BYP US501BYP carry?

About 23,000 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is US70BUS. over US15BYP US501BYP?

The structure is 241 ft (73.4 m) long with a longest span of 98 ft (29.8 m) and a deck 88 ft wide.

Who owns US70BUS. over US15BYP US501BYP?

It is owned by the State Highway Agency.