US Bridges

Knight Road over Cheboyganing Creek

PoorPosted for load

Saginaw County, Michigan · 0.5 MI N of Uncle Henry · Structure no. 000000000009290

Built
1973
52 years old
Condition
Poor
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
480
2007 count
Owner
County
County Highway Agency

About this bridge

Knight Road over Cheboyganing Creek is a prestressed concrete tee beam carrying Knight Road over Cheboyganing Creek in Saginaw County, Michigan. It was built in 1973, so it is 52 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 480 vehicles a day, roughly 5% of them trucks, projected to reach 504 by 2017. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKnight Road
CrossesCheboyganing Creek
Location0.5 MI N of Uncle Henry
RouteCounty Highway 0
CountySaginaw County
StateMichigan
Coordinates43.46494, -83.79786
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.2 US tons
Inventory rating19.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length45 ft (13.7 m)
Longest span42 ft (12.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic480 (2007)
Projected traffic504 by 2017
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$330,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Knight Road over Cheboyganing Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Knight Road over Cheboyganing Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Knight Road over Cheboyganing Creek carry?

About 480 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is Knight Road over Cheboyganing Creek?

The structure is 45 ft (13.7 m) long with a longest span of 42 ft (12.8 m) and a deck 28 ft wide.

Who owns Knight Road over Cheboyganing Creek?

It is owned by the County Highway Agency.