US Bridges

M-123 over E Br Tahquemenon River

Fair

Chippewa County, Michigan · 2.0 MI N of M-28 · Structure no. 000000000001565

Built
1964
61 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
46 ft
3 main spans
Daily traffic
719
2007 count
Owner
State
State Highway Agency

About this bridge

M-123 over E Br Tahquemenon River is a steel culvert carrying M-123 over E Br Tahquemenon River in Chippewa County, Michigan. It was built in 1964, so it is 61 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 719 vehicles a day, roughly 10% of them trucks, projected to reach 819 by 2018. The structure is 46 ft (14 m) long.

CarriesM-123
CrossesE Br Tahquemenon River
Location2.0 MI N of M-28
RouteState Highway 123
Coordinates46.37133, -85.0478
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length46 ft (14 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic719 (2007)
Projected traffic819 by 2018
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 M-123 over E Br Tahquemenon River built?

It was built in 1964, making it 61 years old in 2025.

What condition is M-123 over E Br Tahquemenon 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 M-123 over E Br Tahquemenon River carry?

About 719 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is M-123 over E Br Tahquemenon River?

The structure is 46 ft (14 m) long with a longest span of 13 ft (3.9 m).

Who owns M-123 over E Br Tahquemenon River?

It is owned by the State Highway Agency.