US Bridges

Park Drive over Iron River

FairPosted for load

Iron County, Michigan · In Caspian · Structure no. 000000000004215

Built
1992
33 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
500
1996 count
Owner
City
City or Municipal Highway Agency

About this bridge

Park Drive over Iron River is a prestressed concrete box beam or girders - multiple carrying Park Drive over Iron River in Iron County, Michigan. It was built in 1992, so it is 33 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 500 vehicles a day, projected to reach 750 by 2016. The structure is 60 ft (18.2 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesPark Drive
CrossesIron River
LocationIn Caspian
RouteCity Street 0
CountyIron County
StateMichigan
Coordinates46.07051, -88.63489
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.6 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length60 ft (18.2 m)
Longest span56 ft (17 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (1996)
Projected traffic750 by 2016
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$210,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Park Drive over Iron River built?

It was built in 1992, making it 33 years old in 2025.

What condition is Park Drive over Iron 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 September 2024.

How much traffic does Park Drive over Iron River carry?

About 500 vehicles per day (1996 count).

How long is Park Drive over Iron River?

The structure is 60 ft (18.2 m) long with a longest span of 56 ft (17 m) and a deck 40 ft wide.

Who owns Park Drive over Iron River?

It is owned by the City or Municipal Highway Agency.