US Bridges

Life Guard Road over Sadony Bayou

PoorPosted for load

Muskegon County, Michigan · 0.1 MI W of Lau RD · Structure no. 000000000007694

Built
1900
125 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
440
2004 count
Owner
County
County Highway Agency

About this bridge

Life Guard Road over Sadony Bayou is a steel stringer/multi-beam or girder carrying Life Guard Road over Sadony Bayou in Muskegon County, Michigan. It was built in 1900, so it is 125 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 2 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 440 vehicles a day, projected to reach 722 by 2024. The structure is 31 ft (9.4 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLife Guard Road
CrossesSadony Bayou
Location0.1 MI W of Lau RD
RouteCounty Highway 0
Coordinates43.3774, -86.42286
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 6 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating30.8 US tons
Inventory rating18.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length31 ft (9.4 m)
Longest span27 ft (8.2 m)
Deck width22 ft (6.7 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic440 (2004)
Projected traffic722 by 2024
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Life Guard Road over Sadony Bayou built?

It was built in 1900, making it 125 years old in 2025.

What condition is Life Guard Road over Sadony Bayou 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 September 2024.

How much traffic does Life Guard Road over Sadony Bayou carry?

About 440 vehicles per day (2004 count).

How long is Life Guard Road over Sadony Bayou?

The structure is 31 ft (9.4 m) long with a longest span of 27 ft (8.2 m) and a deck 22 ft wide.

Who owns Life Guard Road over Sadony Bayou?

It is owned by the County Highway Agency.