US Bridges

US-24-I-75 Conn SB over Conrail

Fair

Wayne County, Michigan · In Taylor · Structure no. 000000000011880

Built
1963
62 years old, rebuilt 2001
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
182 ft
3 main spans
Daily traffic
9,440
2007 count
Owner
State
State Highway Agency

About this bridge

US-24-I-75 Conn SB over Conrail is a steel stringer/multi-beam or girder carrying US-24-I-75 Conn SB over Conrail in Wayne County, Michigan. It was built in 1963 and reconstructed in 2001, so it is 62 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 9,440 vehicles a day, roughly 11% of them trucks, projected to reach 9,227 by 2018. The structure is 182 ft (55.4 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS-24-I-75 Conn SB
CrossesConrail
LocationIn Taylor
RouteU.S. Route 24
Coordinates42.19021, -83.2541
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.5 US tons
Inventory rating53.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length182 ft (55.4 m)
Longest span60 ft (18.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,440 (2007)
Projected traffic9,227 by 2018
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-24-I-75 Conn SB over Conrail built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2001.

What condition is US-24-I-75 Conn SB over Conrail 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 November 2023.

How much traffic does US-24-I-75 Conn SB over Conrail carry?

About 9,440 vehicles per day (2007 count), of which roughly 11% are trucks.

How long is US-24-I-75 Conn SB over Conrail?

The structure is 182 ft (55.4 m) long with a longest span of 60 ft (18.4 m) and a deck 43 ft wide.

Who owns US-24-I-75 Conn SB over Conrail?

It is owned by the State Highway Agency.