US Bridges

Selby Street over I-475

Fair

Genesee County, Michigan · North of City of Flint · Structure no. 000000000002679

Built
1977
48 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
255 ft
2 main spans
Daily traffic
2,723
1996 count
Owner
State
State Highway Agency

About this bridge

Selby Street over I-475 is a steel stringer/multi-beam or girder carrying Selby Street over I-475 in Genesee County, Michigan. It was built in 1977, so it is 48 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.

It carries about 2,723 vehicles a day, roughly 4% of them trucks, projected to reach 4,900 by 2016. The structure is 255 ft (77.6 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSelby Street
CrossesI-475
LocationNorth of City of Flint
RouteCounty Highway 0
Coordinates43.08154, -83.68496
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating41.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length255 ft (77.6 m)
Longest span133 ft (40.5 m)
Deck width42 ft (12.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,723 (1996)
Projected traffic4,900 by 2016
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$113,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Selby Street over I-475 built?

It was built in 1977, making it 48 years old in 2025.

What condition is Selby Street over I-475 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 July 2024.

How much traffic does Selby Street over I-475 carry?

About 2,723 vehicles per day (1996 count), of which roughly 4% are trucks.

How long is Selby Street over I-475?

The structure is 255 ft (77.6 m) long with a longest span of 133 ft (40.5 m) and a deck 42 ft wide.

Who owns Selby Street over I-475?

It is owned by the State Highway Agency.