US Bridges

Broad St. over I85 US15-501 US70

Good

Durham County, North Carolina · 0.7 MI.S.JCT.I85&US501 · Structure no. 000000000630136

Built
2006
19 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
194 ft
2 main spans
Daily traffic
12,500
2019 count
Owner
State
State Highway Agency

About this bridge

Broad St. over I85 US15-501 US70 is a steel continuous stringer/multi-beam or girder carrying Broad St. over I85 US15-501 US70 in Durham County, North Carolina. It was built in 2006, so it is 19 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 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 12,500 vehicles a day, roughly 7% of them trucks, projected to reach 25,000 by 2040. The structure is 194 ft (59.1 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBroad St.
CrossesI85 US15-501 US70
Location0.7 MI.S.JCT.I85&US501
RouteCity Street 0
Coordinates36.02517, -78.91673
Functional classUrban Local

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.
Last inspectionAugust 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 rating98 US tons
Inventory rating59 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length194 ft (59.1 m)
Longest span101 ft (30.7 m)
Deck width64 ft (19.4 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2019)
Projected traffic25,000 by 2040
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Broad St. over I85 US15-501 US70 built?

It was built in 2006, making it 19 years old in 2025.

What condition is Broad St. over I85 US15-501 US70 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 August 2023.

How much traffic does Broad St. over I85 US15-501 US70 carry?

About 12,500 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Broad St. over I85 US15-501 US70?

The structure is 194 ft (59.1 m) long with a longest span of 101 ft (30.7 m) and a deck 64 ft wide.

Who owns Broad St. over I85 US15-501 US70?

It is owned by the State Highway Agency.