US Bridges

Whipple RD over I-94

Fair

Jackson County, Michigan · 1.7 MI E of E JCT I-94 Bl · Structure no. 000000000004430

Built
1960
65 years old, rebuilt 2010
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
239 ft
4 main spans
Daily traffic
38,000
1993 count
Owner
State
State Highway Agency

About this bridge

Whipple RD over I-94 is a steel stringer/multi-beam or girder carrying Whipple RD over I-94 in Jackson County, Michigan. It was built in 1960 and reconstructed in 2010, so it is 65 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 38,000 vehicles a day, roughly 5% of them trucks, projected to reach 741 by 2030. The structure is 239 ft (72.8 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesWhipple RD
CrossesI-94
Location1.7 MI E of E JCT I-94 Bl
RouteCounty Highway 0
CountyJackson County
StateMichigan
Coordinates42.28436, -84.28469
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length239 ft (72.8 m)
Longest span81 ft (24.7 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,000 (1993)
Projected traffic741 by 2030
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Whipple RD over I-94 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2010.

What condition is Whipple RD over I-94 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 2023.

How much traffic does Whipple RD over I-94 carry?

About 38,000 vehicles per day (1993 count), of which roughly 5% are trucks.

How long is Whipple RD over I-94?

The structure is 239 ft (72.8 m) long with a longest span of 81 ft (24.7 m) and a deck 35 ft wide.

Who owns Whipple RD over I-94?

It is owned by the State Highway Agency.