US Bridges

Mt Morris Road over Flint River

Fair

Genesee County, Michigan · Bet Gillette & Mckinley R · Structure no. 000000000002728

Built
1965
60 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
350 ft
5 main spans
Daily traffic
6,331
2018 count
Owner
County
County Highway Agency

About this bridge

Mt Morris Road over Flint River is a steel stringer/multi-beam or girder carrying Mt Morris Road over Flint River in Genesee County, Michigan. It was built in 1965, so it is 60 years old, older than the Michigan average of 48.3 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 6,331 vehicles a day, roughly 8% of them trucks, projected to reach 11,434 by 2038. The structure is 350 ft (106.7 m) long and 62 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesMt Morris Road
CrossesFlint River
LocationBet Gillette & Mckinley R
RouteCounty Highway 2574
CountyGenesee County
StateMichigan
Coordinates43.11771, -83.85936
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating69.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length350 ft (106.7 m)
Longest span70 ft (21.3 m)
Deck width62 ft (18.9 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,331 (2018)
Projected traffic11,434 by 2038
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Mt Morris Road over Flint River built?

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

What condition is Mt Morris Road over Flint River 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 2023.

How much traffic does Mt Morris Road over Flint River carry?

About 6,331 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is Mt Morris Road over Flint River?

The structure is 350 ft (106.7 m) long with a longest span of 70 ft (21.3 m) and a deck 62 ft wide.

Who owns Mt Morris Road over Flint River?

It is owned by the County Highway Agency.