US Bridges

I85BUS US29 US70 over SR1009

Poor

Guilford County, North Carolina · 1.53 Mi. N. Jct. SR1300 · Structure no. 000000000810147

Built
1953
72 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
167 ft
3 main spans
Daily traffic
31,000
2021 count
Owner
State
State Highway Agency

About this bridge

I85BUS US29 US70 over SR1009 is a steel continuous stringer/multi-beam or girder carrying I85BUS US29 US70 over SR1009 in Guilford County, North Carolina. It was built in 1953, so it is 72 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 31,000 vehicles a day, roughly 12% of them trucks, projected to reach 62,000 by 2040. The structure is 167 ft (50.9 m) long and 61 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI85BUS US29 US70
CrossesSR1009
Location1.53 Mi. N. Jct. SR1300
RouteInterstate 85
Coordinates35.93488, -79.99156
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating35.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length167 ft (50.9 m)
Longest span81 ft (24.6 m)
Deck width61 ft (18.7 m)
Roadway width54 ft (16.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,000 (2021)
Projected traffic62,000 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I85BUS US29 US70 over SR1009 built?

It was built in 1953, making it 72 years old in 2025.

What condition is I85BUS US29 US70 over SR1009 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does I85BUS US29 US70 over SR1009 carry?

About 31,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is I85BUS US29 US70 over SR1009?

The structure is 167 ft (50.9 m) long with a longest span of 81 ft (24.6 m) and a deck 61 ft wide.

Who owns I85BUS US29 US70 over SR1009?

It is owned by the State Highway Agency.