US Bridges

Nepessing Street over Flint River

Good

Lapeer County, Michigan · 3265 Ft East of M24 Junct · Structure no. 000000000005481

Built
1973
52 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
5,850
1987 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nepessing Street over Flint River is a prestressed concrete box beam or girders - multiple carrying Nepessing Street over Flint River in Lapeer County, Michigan. It was built in 1973, so it is 52 years old, older than the Michigan average of 48.3 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 5,850 vehicles a day, roughly 7% of them trucks, projected to reach 10,565 by 2007. The structure is 54 ft (16.4 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNepessing Street
CrossesFlint River
Location3265 Ft East of M24 Junct
RouteCity Street 2048
Coordinates43.05585, -83.30785
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating46.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length54 ft (16.4 m)
Longest span52 ft (15.8 m)
Deck width52 ft (15.8 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,850 (1987)
Projected traffic10,565 by 2007
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Nepessing Street over Flint River built?

It was built in 1973, making it 52 years old in 2025.

What condition is Nepessing Street over Flint River 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 April 2024.

How much traffic does Nepessing Street over Flint River carry?

About 5,850 vehicles per day (1987 count), of which roughly 7% are trucks.

How long is Nepessing Street over Flint River?

The structure is 54 ft (16.4 m) long with a longest span of 52 ft (15.8 m) and a deck 52 ft wide.

Who owns Nepessing Street over Flint River?

It is owned by the City or Municipal Highway Agency.