US Bridges

TR 176 over Trib Hamilton Br

Good

Brown County, Illinois · 4MI NW Cooperstown · Structure no. 005322600000000

Built
1998
27 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
50
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 176 over Trib Hamilton Br is a prestressed concrete box beam or girders - multiple carrying TR 176 over Trib Hamilton Br in Brown County, Illinois. It was built in 1998, so it is 27 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 51 by 2046. The structure is 70 ft (21.2 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesTR 176
CrossesTrib Hamilton Br
Location4MI NW Cooperstown
RouteCounty Highway 0
Coordinates40.00028, -90.67289
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length70 ft (21.2 m)
Longest span67 ft (20.3 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic51 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR 176 over Trib Hamilton Br built?

It was built in 1998, making it 27 years old in 2025.

What condition is TR 176 over Trib Hamilton Br in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does TR 176 over Trib Hamilton Br carry?

About 50 vehicles per day (2023 count).

How long is TR 176 over Trib Hamilton Br?

The structure is 70 ft (21.2 m) long with a longest span of 67 ft (20.3 m) and a deck 24 ft wide.

Who owns TR 176 over Trib Hamilton Br?

It is owned by the Town or Township Highway Agency.