US Bridges

Sunset Drive - 3rd over Flint River

PoorPosted for load

Genesee County, Michigan · In Flint · Structure no. 000000000002832

Built
1957
68 years old
Condition
Poor
inspected December 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
206 ft
4 main spans
Daily traffic
4,519
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sunset Drive - 3rd over Flint River is a concrete box beam or girders - multiple carrying Sunset Drive - 3rd over Flint River in Genesee County, Michigan. It was built in 1957, so it is 68 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 4,519 vehicles a day, roughly 7% of them trucks, projected to reach 6,715 by 2041. The structure is 206 ft (62.8 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSunset Drive - 3rd
CrossesFlint River
LocationIn Flint
RouteCity Street 2002
Coordinates43.01071, -83.72
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.1 US tons
Inventory rating24.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length206 ft (62.8 m)
Longest span52 ft (15.8 m)
Deck width58 ft (17.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,519 (2021)
Projected traffic6,715 by 2041
Trucks7%
Lanes on structure4
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 Sunset Drive - 3rd over Flint River built?

It was built in 1957, making it 68 years old in 2025.

What condition is Sunset Drive - 3rd over Flint River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does Sunset Drive - 3rd over Flint River carry?

About 4,519 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Sunset Drive - 3rd over Flint River?

The structure is 206 ft (62.8 m) long with a longest span of 52 ft (15.8 m) and a deck 58 ft wide.

Who owns Sunset Drive - 3rd over Flint River?

It is owned by the City or Municipal Highway Agency.