US Bridges

SR2171 over I77

Fair

Iredell County, North Carolina · 0.2 Mi. W. Jct. SR2172 · Structure no. 000000000970182

Built
1964
61 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
219 ft
4 main spans
Daily traffic
4,300
2022 count
Owner
State
State Highway Agency

About this bridge

SR2171 over I77 is a steel stringer/multi-beam or girder carrying SR2171 over I77 in Iredell County, North Carolina. It was built in 1964, so it is 61 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 5 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 4,300 vehicles a day, roughly 6% of them trucks, projected to reach 8,600 by 2040. The structure is 219 ft (66.7 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR2171
CrossesI77
Location0.2 Mi. W. Jct. SR2172
RouteState Highway 2171
CountyIredell County
StateNorth Carolina
Coordinates35.83366, -80.85997
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.9 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length219 ft (66.7 m)
Longest span55 ft (16.7 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2022)
Projected traffic8,600 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 SR2171 over I77 built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR2171 over I77 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 June 2024.

How much traffic does SR2171 over I77 carry?

About 4,300 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR2171 over I77?

The structure is 219 ft (66.7 m) long with a longest span of 55 ft (16.7 m) and a deck 28 ft wide.

Who owns SR2171 over I77?

It is owned by the State Highway Agency.