US Bridges

SR2100 over I40 I85

Fair

Alamance County, North Carolina · 0.5 Mi. S. Jct. NC87 · Structure no. 000000000010140

Built
1991
34 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
273 ft
4 main spans
Daily traffic
3,900
2017 count
Owner
State
State Highway Agency

About this bridge

SR2100 over I40 I85 is a steel stringer/multi-beam or girder carrying SR2100 over I40 I85 in Alamance 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 3,900 vehicles a day, roughly 7% of them trucks, projected to reach 7,800 by 2040. The structure is 273 ft (83.2 m) long and 33 ft wide.

CarriesSR2100
CrossesI40 I85
Location0.5 Mi. S. Jct. NC87
RouteState Highway 2100
Coordinates36.06099, -79.39134
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating93.9 US tons
Inventory rating56 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHS 20 + Mod
Structure length273 ft (83.2 m)
Longest span95 ft (28.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2017)
Projected traffic7,800 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR2100 over I40 I85 built?

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

What condition is SR2100 over I40 I85 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 January 2025.

How much traffic does SR2100 over I40 I85 carry?

About 3,900 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is SR2100 over I40 I85?

The structure is 273 ft (83.2 m) long with a longest span of 95 ft (28.9 m) and a deck 33 ft wide.

Who owns SR2100 over I40 I85?

It is owned by the State Highway Agency.