US Bridges

TR 18 over Bugaboo Ck

Good

Lawrence County, Illinois · 4.75 MI S Chauncey · Structure no. 051330800000000

Built
2022
3 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
100 ft
3 main spans
Daily traffic
50
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 18 over Bugaboo Ck is a prestressed concrete box beam or girders - multiple carrying TR 18 over Bugaboo Ck in Lawrence County, Illinois. It was built in 2022, so it is 3 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 8 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, roughly 2% of them trucks, projected to reach 51 by 2046. The structure is 100 ft (30.4 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 18
CrossesBugaboo Ck
Location4.75 MI S Chauncey
RouteCounty Highway 0
Coordinates38.76536, -87.88027
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating47.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length100 ft (30.4 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.6 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic51 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was TR 18 over Bugaboo Ck built?

It was built in 2022, making it 3 years old in 2025.

What condition is TR 18 over Bugaboo 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 December 2023.

How much traffic does TR 18 over Bugaboo Ck carry?

About 50 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is TR 18 over Bugaboo Ck?

The structure is 100 ft (30.4 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns TR 18 over Bugaboo Ck?

It is owned by the Town or Township Highway Agency.