US Bridges

TR 168 over Bolin Branch

Good

Moultrie County, Illinois · 5 MI NE Sullivan · Structure no. 070431700000000

Built
1957
68 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
50
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 168 over Bolin Branch is a concrete culvert carrying TR 168 over Bolin Branch in Moultrie County, Illinois. It was built in 1957, so it is 68 years old, older 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, roughly 8% of them trucks, projected to reach 53 by 2046. The structure is 31 ft (9.5 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 168
CrossesBolin Branch
Location5 MI NE Sullivan
RouteCounty Highway 0
Coordinates39.6213, -88.49553
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
Deck9 ExcellentNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.1 US tons
Inventory rating22.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length31 ft (9.5 m)
Longest span10 ft (2.9 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic53 by 2046
Trucks8%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 168 over Bolin Branch built?

It was built in 1957, making it 68 years old in 2025.

What condition is TR 168 over Bolin Branch 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 168 over Bolin Branch carry?

About 50 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is TR 168 over Bolin Branch?

The structure is 31 ft (9.5 m) long with a longest span of 10 ft (2.9 m) and a deck 23 ft wide.

Who owns TR 168 over Bolin Branch?

It is owned by the Town or Township Highway Agency.