US Bridges

TR 51 Gilmore Lk R over Trib to Gerhardt Ck

Good

Monroe County, Illinois · 3 MI E Waterloo · Structure no. 067317000000000

Built
2002
23 years old
Condition
Good
inspected February 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
225
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 51 Gilmore Lk R over Trib to Gerhardt Ck is a prestressed concrete box beam or girders - multiple carrying TR 51 Gilmore Lk R over Trib to Gerhardt Ck in Monroe County, Illinois. It was built in 2002, so it is 23 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 225 vehicles a day, roughly 18% of them trucks, projected to reach 283 by 2046. The structure is 37 ft (11.2 m) long and 28 ft wide.

CarriesTR 51 Gilmore Lk R
CrossesTrib to Gerhardt Ck
Location3 MI E Waterloo
RouteCounty Highway 0
Coordinates38.37241, -90.10207
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 inspectionFebruary 2022
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 alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length37 ft (11.2 m)
Longest span34 ft (10.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2024)
Projected traffic283 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 51 Gilmore Lk R over Trib to Gerhardt Ck built?

It was built in 2002, making it 23 years old in 2025.

What condition is TR 51 Gilmore Lk R over Trib to Gerhardt Ck 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 February 2022.

How much traffic does TR 51 Gilmore Lk R over Trib to Gerhardt Ck carry?

About 225 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is TR 51 Gilmore Lk R over Trib to Gerhardt Ck?

The structure is 37 ft (11.2 m) long with a longest span of 34 ft (10.4 m) and a deck 28 ft wide.

Who owns TR 51 Gilmore Lk R over Trib to Gerhardt Ck?

It is owned by the Town or Township Highway Agency.