US Bridges

I-275 NB over Telegraph RD (US-24)

Fair

Monroe County, Michigan · 5 MI SW of Flatrock · Structure no. 000000000007220

Built
1973
52 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
234 ft
3 main spans
Daily traffic
18,279
2007 count
Owner
State
State Highway Agency

About this bridge

I-275 NB over Telegraph RD (US-24) is a steel stringer/multi-beam or girder carrying I-275 NB over Telegraph RD (US-24) in Monroe County, Michigan. It was built in 1973, so it is 52 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. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 18,279 vehicles a day, roughly 19% of them trucks, projected to reach 17,266 by 2018. The structure is 234 ft (71.2 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-275 NB
CrossesTelegraph RD (US-24)
Location5 MI SW of Flatrock
RouteInterstate 275
CountyMonroe County
StateMichigan
Coordinates42.01833, -83.34662
Functional classRural Principal Arterial - Interstate

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.9 US tons
Inventory rating59.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length234 ft (71.2 m)
Longest span140 ft (42.6 m)
Deck width52 ft (15.8 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,279 (2007)
Projected traffic17,266 by 2018
Trucks19%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-275 NB over Telegraph RD (US-24) built?

It was built in 1973, making it 52 years old in 2025.

What condition is I-275 NB over Telegraph RD (US-24) 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 2024.

How much traffic does I-275 NB over Telegraph RD (US-24) carry?

About 18,279 vehicles per day (2007 count), of which roughly 19% are trucks.

How long is I-275 NB over Telegraph RD (US-24)?

The structure is 234 ft (71.2 m) long with a longest span of 140 ft (42.6 m) and a deck 52 ft wide.

Who owns I-275 NB over Telegraph RD (US-24)?

It is owned by the State Highway Agency.