US Bridges

TR 235 over Little Bonpas Creek

Good

Lawrence County, Illinois · 5.5 MI S Sumner · Structure no. 051327000000000

Built
2000
25 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
76 ft
3 main spans
Daily traffic
75
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 235 over Little Bonpas Creek is a prestressed concrete box beam or girders - multiple carrying TR 235 over Little Bonpas Creek in Lawrence County, Illinois. It was built in 2000, so it is 25 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 75 vehicles a day, roughly 5% of them trucks, projected to reach 76 by 2046. The structure is 76 ft (23.3 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 235
CrossesLittle Bonpas Creek
Location5.5 MI S Sumner
RouteCounty Highway 0
Coordinates38.62894, -87.8661
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 inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length76 ft (23.3 m)
Longest span25 ft (7.6 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2021)
Projected traffic76 by 2046
Trucks5%
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 235 over Little Bonpas Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is TR 235 over Little Bonpas Creek 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 2023.

How much traffic does TR 235 over Little Bonpas Creek carry?

About 75 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is TR 235 over Little Bonpas Creek?

The structure is 76 ft (23.3 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.

Who owns TR 235 over Little Bonpas Creek?

It is owned by the Town or Township Highway Agency.