US Bridges

TR 360 (gentry Roa over E Br Kaskaskia River

Good

Marion County, Illinois · 2 MI N of Kinmundy · Structure no. 061331800000000

Built
2014
11 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
25
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 360 (gentry Roa over E Br Kaskaskia River is a prestressed concrete box beam or girders - multiple carrying TR 360 (gentry Roa over E Br Kaskaskia River in Marion County, Illinois. It was built in 2014, so it is 11 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 25 vehicles a day, roughly 12% of them trucks, projected to reach 25 by 2046. The structure is 75 ft (22.9 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR 360 (gentry Roa
CrossesE Br Kaskaskia River
Location2 MI N of Kinmundy
RouteCounty Highway 0
CountyMarion County
StateIllinois
Coordinates38.80478, -88.8592
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length75 ft (22.9 m)
Longest span73 ft (22.2 m)
Deck width24 ft (7.3 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 360 (gentry Roa over E Br Kaskaskia River built?

It was built in 2014, making it 11 years old in 2025.

What condition is TR 360 (gentry Roa over E Br Kaskaskia River 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 January 2025.

How much traffic does TR 360 (gentry Roa over E Br Kaskaskia River carry?

About 25 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is TR 360 (gentry Roa over E Br Kaskaskia River?

The structure is 75 ft (22.9 m) long with a longest span of 73 ft (22.2 m) and a deck 24 ft wide.

Who owns TR 360 (gentry Roa over E Br Kaskaskia River?

It is owned by the Town or Township Highway Agency.