US Bridges

Robert T Longway over Flint River

FairPosted for load

Genesee County, Michigan · In City of Flint · Structure no. 000000000002833

Built
1994
31 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
225 ft
3 main spans
Daily traffic
18,849
2001 count
Owner
City
City or Municipal Highway Agency

About this bridge

Robert T Longway over Flint River is a prestressed concrete box beam or girders - multiple carrying Robert T Longway over Flint River in Genesee County, Michigan. It was built in 1994, so it is 31 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 18,849 vehicles a day, roughly 8% of them trucks, projected to reach 25,943 by 2015. The structure is 225 ft (68.6 m) long and 76 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRobert T Longway
CrossesFlint River
LocationIn City of Flint
RouteCity Street 2002
Coordinates43.02405, -83.68681
Functional classUrban Other Principal 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 protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating16.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length225 ft (68.6 m)
Longest span75 ft (22.8 m)
Deck width76 ft (23.3 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,849 (2001)
Projected traffic25,943 by 2015
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$950,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Robert T Longway over Flint River built?

It was built in 1994, making it 31 years old in 2025.

What condition is Robert T Longway 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 June 2023.

How much traffic does Robert T Longway over Flint River carry?

About 18,849 vehicles per day (2001 count), of which roughly 8% are trucks.

How long is Robert T Longway over Flint River?

The structure is 225 ft (68.6 m) long with a longest span of 75 ft (22.8 m) and a deck 76 ft wide.

Who owns Robert T Longway over Flint River?

It is owned by the City or Municipal Highway Agency.