US Bridges

County Road EM260 over Lake Gerald

Good

Houghton County, Michigan · .3 MI S .3 MI E Twin Lake · Structure no. 000000000003428

Built
1986
39 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
100
1993 count
Owner
County
County Highway Agency

About this bridge

County Road EM260 over Lake Gerald is a prestressed concrete box beam or girders - multiple carrying County Road EM260 over Lake Gerald in Houghton County, Michigan. It was built in 1986, so it is 39 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, projected to reach 120 by 2013. The structure is 42 ft (12.8 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesCounty Road EM260
CrossesLake Gerald
Location.3 MI S .3 MI E Twin Lake
RouteCounty Highway 0
CountyHoughton County
StateMichigan
Coordinates46.89372, -88.84213
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.2 US tons
Inventory rating56.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length42 ft (12.8 m)
Longest span42 ft (12.8 m)
Deck width31 ft (9.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (1993)
Projected traffic120 by 2013
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County Road EM260 over Lake Gerald built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Road EM260 over Lake Gerald in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does County Road EM260 over Lake Gerald carry?

About 100 vehicles per day (1993 count).

How long is County Road EM260 over Lake Gerald?

The structure is 42 ft (12.8 m) long with a longest span of 42 ft (12.8 m) and a deck 31 ft wide.

Who owns County Road EM260 over Lake Gerald?

It is owned by the County Highway Agency.