US Bridges

Portage Road over Barton-Howard Lakes Chan

Good

Kalamazoo County, Michigan · Schoolcraft Twp Sec 27 · Structure no. 000000000013234

Built
2005
20 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
1,302
2019 count
Owner
County
County Highway Agency

About this bridge

Portage Road over Barton-Howard Lakes Chan is a prestressed concrete box beam or girders - multiple carrying Portage Road over Barton-Howard Lakes Chan in Kalamazoo County, Michigan. It was built in 2005, so it is 20 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 1,302 vehicles a day, roughly 5% of them trucks, projected to reach 3,250 by 2025. The structure is 25 ft (7.6 m) long and 44 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesPortage Road
CrossesBarton-Howard Lakes Chan
LocationSchoolcraft Twp Sec 27
RouteCounty Highway 0
CountyKalamazoo County
StateMichigan
Coordinates42.08977, -85.57326
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.5 US tons
Inventory rating26.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span21 ft (6.3 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,302 (2019)
Projected traffic3,250 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
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 Portage Road over Barton-Howard Lakes Chan built?

It was built in 2005, making it 20 years old in 2025.

What condition is Portage Road over Barton-Howard Lakes Chan 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 June 2023.

How much traffic does Portage Road over Barton-Howard Lakes Chan carry?

About 1,302 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Portage Road over Barton-Howard Lakes Chan?

The structure is 25 ft (7.6 m) long with a longest span of 21 ft (6.3 m) and a deck 44 ft wide.

Who owns Portage Road over Barton-Howard Lakes Chan?

It is owned by the County Highway Agency.