US Bridges

E Imlay City RD over S Br Flint R

Good

Lapeer County, Michigan · In Lapeer (old M-21) · Structure no. 000000000005322

Built
1997
28 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
14,458
1999 count
Owner
City
City or Municipal Highway Agency

About this bridge

E Imlay City RD over S Br Flint R is a prestressed concrete box beam or girders - single or spread carrying E Imlay City RD over S Br Flint R in Lapeer County, Michigan. It was built in 1997, so it is 28 years old, younger 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 14,458 vehicles a day, roughly 4% of them trucks, projected to reach 16,627 by 2014. The structure is 32 ft (9.7 m) long and 76 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesE Imlay City RD
CrossesS Br Flint R
LocationIn Lapeer (old M-21)
RouteCity Street 0
Coordinates43.05093, -83.30404
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.
Superstructure8 Very GoodNo problems noted.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.9 US tons
Inventory rating49.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span32 ft (9.7 m)
Deck width76 ft (23.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,458 (1999)
Projected traffic16,627 by 2014
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
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 E Imlay City RD over S Br Flint R built?

It was built in 1997, making it 28 years old in 2025.

What condition is E Imlay City RD over S Br Flint R 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 E Imlay City RD over S Br Flint R carry?

About 14,458 vehicles per day (1999 count), of which roughly 4% are trucks.

How long is E Imlay City RD over S Br Flint R?

The structure is 32 ft (9.7 m) long with a longest span of 32 ft (9.7 m) and a deck 76 ft wide.

Who owns E Imlay City RD over S Br Flint R?

It is owned by the City or Municipal Highway Agency.