US Bridges

Sibley RD over I-275

Fair

Wayne County, Michigan · 0.7 MI E of New Boston · Structure no. 000000000011901

Built
1974
51 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
288 ft
2 main spans
Daily traffic
12,377
1992 count
Owner
State
State Highway Agency

About this bridge

Sibley RD over I-275 is a steel stringer/multi-beam or girder carrying Sibley RD over I-275 in Wayne County, Michigan. It was built in 1974, so it is 51 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 6 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 12,377 vehicles a day, roughly 15% of them trucks, projected to reach 20,300 by 2017. The structure is 288 ft (87.8 m) long and 78 ft wide.

Location

Open in Google Maps
CarriesSibley RD
CrossesI-275
Location0.7 MI E of New Boston
RouteCounty Highway 8222
CountyWayne County
StateMichigan
Coordinates42.16554, -83.38752
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating91.1 US tons
Inventory rating54.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length288 ft (87.8 m)
Longest span144 ft (43.9 m)
Deck width78 ft (23.9 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,377 (1992)
Projected traffic20,300 by 2017
Trucks15%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
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 proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sibley RD over I-275 built?

It was built in 1974, making it 51 years old in 2025.

What condition is Sibley RD over I-275 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 May 2024.

How much traffic does Sibley RD over I-275 carry?

About 12,377 vehicles per day (1992 count), of which roughly 15% are trucks.

How long is Sibley RD over I-275?

The structure is 288 ft (87.8 m) long with a longest span of 144 ft (43.9 m) and a deck 78 ft wide.

Who owns Sibley RD over I-275?

It is owned by the State Highway Agency.