US Bridges

4th Street Ext. over Irwin Creek & Pedestrian

Fair

Mecklenburg County, North Carolina · 0.1 MI.E.JCT.I77 · Structure no. 000000001190389

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
63 ft
4 main spans
Daily traffic
4,600
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

4th Street Ext. over Irwin Creek & Pedestrian is a concrete continuous culvert carrying 4th Street Ext. over Irwin Creek & Pedestrian in Mecklenburg County, North Carolina. It was built in 1965, so it is 60 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 4,600 vehicles a day, roughly 7% of them trucks, projected to reach 9,200 by 2040. The structure is 63 ft (19.2 m) long and 80 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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Carries4th Street Ext.
CrossesIrwin Creek & Pedestrian
Location0.1 MI.E.JCT.I77
RouteCity Street 0
CountyMecklenburg County
StateNorth Carolina
Coordinates35.23317, -80.85662
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating90.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length63 ft (19.2 m)
Longest span13 ft (3.9 m)
Deck width80 ft (24.4 m)
Roadway width52 ft (15.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,600 (2022)
Projected traffic9,200 by 2040
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 4th Street Ext. over Irwin Creek & Pedestrian built?

It was built in 1965, making it 60 years old in 2025.

What condition is 4th Street Ext. over Irwin Creek & Pedestrian 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 April 2024.

How much traffic does 4th Street Ext. over Irwin Creek & Pedestrian carry?

About 4,600 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is 4th Street Ext. over Irwin Creek & Pedestrian?

The structure is 63 ft (19.2 m) long with a longest span of 13 ft (3.9 m) and a deck 80 ft wide.

Who owns 4th Street Ext. over Irwin Creek & Pedestrian?

It is owned by the City or Municipal Highway Agency.