US Bridges

I-155 & Ramps a & over S Fk Prairie Creek

Poor

Logan County, Illinois · .2M S US 136 · Structure no. 054202300000000

Built
1990
35 years old
Condition
Poor
inspected April 2024
Type
Culvert
Concrete
Length
48 ft
3 main spans
Daily traffic
5,825
2023 count
Owner
State
State Highway Agency

About this bridge

I-155 & Ramps a & over S Fk Prairie Creek is a concrete culvert carrying I-155 & Ramps a & over S Fk Prairie Creek in Logan County, Illinois. It was built in 1990, so it is 35 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 5,825 vehicles a day, roughly 19% of them trucks, projected to reach 10,675 by 2046. The structure is 48 ft (14.7 m) long.

Location

Open in Google Maps
CarriesI-155 & Ramps a &
CrossesS Fk Prairie Creek
Location.2M S US 136
RouteInterstate 155
CountyLogan County
StateIllinois
Coordinates40.3045, -89.45284
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length48 ft (14.7 m)
Longest span16 ft (4.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,825 (2023)
Projected traffic10,675 by 2046
Trucks19%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I-155 & Ramps a & over S Fk Prairie Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is I-155 & Ramps a & over S Fk Prairie Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does I-155 & Ramps a & over S Fk Prairie Creek carry?

About 5,825 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is I-155 & Ramps a & over S Fk Prairie Creek?

The structure is 48 ft (14.7 m) long with a longest span of 16 ft (4.8 m).

Who owns I-155 & Ramps a & over S Fk Prairie Creek?

It is owned by the State Highway Agency.