US Bridges

Union Pier Road over I-94

Fair

Berrien County, Michigan · 0.9 MI E of Union Pier · Structure no. 000000000000801

Built
1962
63 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
392 ft
4 main spans
Daily traffic
159
2016 count
Owner
State
State Highway Agency

About this bridge

Union Pier Road over I-94 is a steel stringer/multi-beam or girder carrying Union Pier Road over I-94 in Berrien County, Michigan. It was built in 1962, so it is 63 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 159 vehicles a day, roughly 2% of them trucks, projected to reach 183 by 2036. The structure is 392 ft (119.5 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUnion Pier Road
CrossesI-94
Location0.9 MI E of Union Pier
RouteCounty Highway 1110
CountyBerrien County
StateMichigan
Coordinates41.82797, -86.67348
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
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 rating89.9 US tons
Inventory rating53.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length392 ft (119.5 m)
Longest span116 ft (35.4 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic159 (2016)
Projected traffic183 by 2036
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Union Pier Road over I-94 built?

It was built in 1962, making it 63 years old in 2025.

What condition is Union Pier Road 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 October 2024.

How much traffic does Union Pier Road over I-94 carry?

About 159 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Union Pier Road over I-94?

The structure is 392 ft (119.5 m) long with a longest span of 116 ft (35.4 m) and a deck 35 ft wide.

Who owns Union Pier Road over I-94?

It is owned by the State Highway Agency.