US Bridges

Baa Road over Sand River

FairPosted for load

Marquette County, Michigan · 5 MI E of Gordon · Structure no. 000000000006573

Built
1932
93 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
10
2001 count
Owner
County
County Highway Agency

About this bridge

Baa Road over Sand River is a steel stringer/multi-beam or girder carrying Baa Road over Sand River in Marquette County, Michigan. It was built in 1932, so it is 93 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 20 by 2020. The structure is 42 ft (12.8 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBaa Road
CrossesSand River
Location5 MI E of Gordon
RouteCounty Highway 0
CountyMarquette County
StateMichigan
Coordinates46.48736, -87.12546
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating12.1 US tons
Inventory rating8.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length42 ft (12.8 m)
Longest span39 ft (11.8 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2001)
Projected traffic20 by 2020
Trucks0%
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$71,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Baa Road over Sand River built?

It was built in 1932, making it 93 years old in 2025.

What condition is Baa Road over Sand 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 November 2023.

How much traffic does Baa Road over Sand River carry?

About 10 vehicles per day (2001 count).

How long is Baa Road over Sand River?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.8 m) and a deck 16 ft wide.

Who owns Baa Road over Sand River?

It is owned by the County Highway Agency.