US Bridges

NC16 Sbl over Irwin Creek Andrill Terr

Fair

Mecklenburg County, North Carolina · 0.05 Mi. N. Jct. I77 · Structure no. 000000001190342

Built
1972
53 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
233 ft
4 main spans
Daily traffic
25,000
2022 count
Owner
State
State Highway Agency

About this bridge

NC16 Sbl over Irwin Creek Andrill Terr is a steel stringer/multi-beam or girder carrying NC16 Sbl over Irwin Creek Andrill Terr in Mecklenburg County, North Carolina. It was built in 1972, so it is 53 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 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 25,000 vehicles a day, roughly 12% of them trucks, projected to reach 50,000 by 2040. The structure is 233 ft (71 m) long and 51 ft wide.

CarriesNC16 Sbl
CrossesIrwin Creek Andrill Terr
Location0.05 Mi. N. Jct. I77
RouteState Highway 16
Coordinates35.24456, -80.84961
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.9 US tons
Inventory rating48.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length233 ft (71 m)
Longest span63 ft (19.2 m)
Deck width51 ft (15.5 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,000 (2022)
Projected traffic50,000 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NC16 Sbl over Irwin Creek Andrill Terr built?

It was built in 1972, making it 53 years old in 2025.

What condition is NC16 Sbl over Irwin Creek Andrill Terr 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 September 2024.

How much traffic does NC16 Sbl over Irwin Creek Andrill Terr carry?

About 25,000 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is NC16 Sbl over Irwin Creek Andrill Terr?

The structure is 233 ft (71 m) long with a longest span of 63 ft (19.2 m) and a deck 51 ft wide.

Who owns NC16 Sbl over Irwin Creek Andrill Terr?

It is owned by the State Highway Agency.