US Bridges

Ts Avenue over Portage River

PoorClosed to traffic

Kalamazoo County, Michigan · 0.3 MI N of Indian Lake · Structure no. 000000000004652

Built
1933
92 years old, rebuilt 1972
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
1 main span
Daily traffic
252
2023 count
Owner
County
County Highway Agency

About this bridge

Ts Avenue over Portage River is a steel stringer/multi-beam or girder carrying Ts Avenue over Portage River in Kalamazoo County, Michigan. It was built in 1933 and reconstructed in 1972, so it is 92 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: closed to all traffic.

It carries about 252 vehicles a day, roughly 5% of them trucks, projected to reach 260 by 2043. The structure is 34 ft (10.4 m) long and 16 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesTs Avenue
CrossesPortage River
Location0.3 MI N of Indian Lake
RouteCounty Highway 0
Coordinates42.16547, -85.4713
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourUnknown foundation; not evaluated for scour
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry0: Immediate repair necessary to put back in service
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic252 (2023)
Projected traffic260 by 2043
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$487,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ts Avenue over Portage River built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1972.

What condition is Ts Avenue over Portage River 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 March 2024.

How much traffic does Ts Avenue over Portage River carry?

About 252 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Ts Avenue over Portage River?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 16 ft wide.

Who owns Ts Avenue over Portage River?

It is owned by the County Highway Agency.