US Bridges

S Bridge Street over Grand River

Fair

Ionia County, Michigan · Lyons Michigan · Structure no. 000000000004101

Built
1975
50 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
400 ft
6 main spans
Daily traffic
2,000
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Bridge Street over Grand River is a prestressed concrete box beam or girders - multiple carrying S Bridge Street over Grand River in Ionia County, Michigan. It was built in 1975, so it is 50 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 2,000 vehicles a day, roughly 5% of them trucks, projected to reach 3,000 by 2035. The structure is 400 ft (121.9 m) long and 40 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesS Bridge Street
CrossesGrand River
LocationLyons Michigan
RouteCity Street 3475
Coordinates42.98196, -84.94951
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length400 ft (121.9 m)
Longest span67 ft (20.4 m)
Deck width40 ft (12.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2015)
Projected traffic3,000 by 2035
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S Bridge Street over Grand River built?

It was built in 1975, making it 50 years old in 2025.

What condition is S Bridge Street over Grand River 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 August 2024.

How much traffic does S Bridge Street over Grand River carry?

About 2,000 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is S Bridge Street over Grand River?

The structure is 400 ft (121.9 m) long with a longest span of 67 ft (20.4 m) and a deck 40 ft wide.

Who owns S Bridge Street over Grand River?

It is owned by the City or Municipal Highway Agency.