US Bridges

Bridge Street over Coldwater River

Good

Isabella County, Michigan · Sec 18C Nottawa Twp · Structure no. 000000000004372

Built
1998
27 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
107
2002 count
Owner
County
County Highway Agency

About this bridge

Bridge Street over Coldwater River is a prestressed concrete box beam or girders - multiple carrying Bridge Street over Coldwater River in Isabella County, Michigan. It was built in 1998, so it is 27 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 107 vehicles a day, roughly 1% of them trucks, projected to reach 131 by 2022. The structure is 34 ft (10.4 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesBridge Street
CrossesColdwater River
LocationSec 18C Nottawa Twp
RouteCounty Highway 0
Coordinates43.68861, -84.96389
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating92.7 US tons
Inventory rating55.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic107 (2002)
Projected traffic131 by 2022
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Bridge Street over Coldwater River built?

It was built in 1998, making it 27 years old in 2025.

What condition is Bridge Street over Coldwater River 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 July 2024.

How much traffic does Bridge Street over Coldwater River carry?

About 107 vehicles per day (2002 count), of which roughly 1% are trucks.

How long is Bridge Street over Coldwater River?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns Bridge Street over Coldwater River?

It is owned by the County Highway Agency.