US Bridges

Narrows Road over Coldwater River

Fair

Branch County, Michigan · Coldwater Twp Sec 5 · Structure no. 000000000001113

Built
2009
16 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
128 ft
1 main span
Daily traffic
1,848
2008 count
Owner
County
County Highway Agency

About this bridge

Narrows Road over Coldwater River is a prestressed concrete box beam or girders - multiple carrying Narrows Road over Coldwater River in Branch County, Michigan. It was built in 2009, so it is 16 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.

It carries about 1,848 vehicles a day, roughly 2% of them trucks, projected to reach 2,255 by 2028. The structure is 128 ft (39 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesNarrows Road
CrossesColdwater River
LocationColdwater Twp Sec 5
RouteCounty Highway 0
CountyBranch County
StateMichigan
Coordinates41.97813, -85.02895
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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 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 rating80.2 US tons
Inventory rating48.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length128 ft (39 m)
Longest span127 ft (38.6 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,848 (2008)
Projected traffic2,255 by 2028
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Narrows Road over Coldwater River built?

It was built in 2009, making it 16 years old in 2025.

What condition is Narrows Road over Coldwater 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 October 2024.

How much traffic does Narrows Road over Coldwater River carry?

About 1,848 vehicles per day (2008 count), of which roughly 2% are trucks.

How long is Narrows Road over Coldwater River?

The structure is 128 ft (39 m) long with a longest span of 127 ft (38.6 m) and a deck 33 ft wide.

Who owns Narrows Road over Coldwater River?

It is owned by the County Highway Agency.