US Bridges

Wisner Road over Beaver Creek

Fair

Gratiot County, Michigan · Sec 7 Lafayette Twp · Structure no. 000000000003171

Built
1950
75 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
1,025
2003 count
Owner
County
County Highway Agency

About this bridge

Wisner Road over Beaver Creek is a steel stringer/multi-beam or girder carrying Wisner Road over Beaver Creek in Gratiot County, Michigan. It was built in 1950, so it is 75 years old, older 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 1,025 vehicles a day, projected to reach 1,380 by 2023. The structure is 35 ft (10.6 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesWisner Road
CrossesBeaver Creek
LocationSec 7 Lafayette Twp
RouteCounty Highway 2973
CountyGratiot County
StateMichigan
Coordinates43.35014, -84.48837
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.6 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length35 ft (10.6 m)
Longest span32 ft (9.7 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,025 (2003)
Projected traffic1,380 by 2023
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$200,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Wisner Road over Beaver Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Wisner Road over Beaver Creek 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 June 2023.

How much traffic does Wisner Road over Beaver Creek carry?

About 1,025 vehicles per day (2003 count).

How long is Wisner Road over Beaver Creek?

The structure is 35 ft (10.6 m) long with a longest span of 32 ft (9.7 m) and a deck 31 ft wide.

Who owns Wisner Road over Beaver Creek?

It is owned by the County Highway Agency.