US Bridges

I85 Bus.Lp US29&70 over Richland Creek

Good

Guilford County, North Carolina · 1.0 Mi. N. Jct. US311 · Structure no. 000000000810576

Built
1953
72 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete Continuous
Length
49 ft
3 main spans
Daily traffic
32,000
2019 count
Owner
State
State Highway Agency

About this bridge

I85 Bus.Lp US29&70 over Richland Creek is a concrete continuous culvert carrying I85 Bus.Lp US29&70 over Richland Creek 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 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 32,000 vehicles a day, roughly 12% of them trucks, projected to reach 64,000 by 2040. The structure is 49 ft (14.9 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI85 Bus.Lp US29&70
CrossesRichland Creek
Location1.0 Mi. N. Jct. US311
RouteInterstate 29
Coordinates35.94289, -79.97544
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length49 ft (14.9 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,000 (2019)
Projected traffic64,000 by 2040
Trucks12%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I85 Bus.Lp US29&70 over Richland Creek built?

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

What condition is I85 Bus.Lp US29&70 over Richland 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 January 2024.

How much traffic does I85 Bus.Lp US29&70 over Richland Creek carry?

About 32,000 vehicles per day (2019 count), of which roughly 12% are trucks.

How long is I85 Bus.Lp US29&70 over Richland Creek?

The structure is 49 ft (14.9 m) long with a longest span of 11 ft (3.3 m).

Who owns I85 Bus.Lp US29&70 over Richland Creek?

It is owned by the State Highway Agency.