US Bridges

E Front RD of I-15 over N Fork Prairie Creek

Fair

Logan County, Illinois · .3M N US 136 · Structure no. 054202800000000

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
44 ft
3 main spans
Daily traffic
100
2023 count
Owner
State
State Highway Agency

About this bridge

E Front RD of I-15 over N Fork Prairie Creek is a concrete continuous culvert carrying E Front RD of I-15 over N Fork 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 8% of them trucks, projected to reach 105 by 2046. The structure is 44 ft (13.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesE Front RD of I-15
CrossesN Fork Prairie Creek
Location.3M N US 136
RouteCounty Highway 0
Coordinates40.31101, -89.45286
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating62.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.3 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic105 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 E Front RD of I-15 over N Fork Prairie Creek built?

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

What condition is E Front RD of I-15 over N Fork Prairie Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does E Front RD of I-15 over N Fork Prairie Creek carry?

About 100 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is E Front RD of I-15 over N Fork Prairie Creek?

The structure is 44 ft (13.3 m) long with a longest span of 13 ft (4 m).

Who owns E Front RD of I-15 over N Fork Prairie Creek?

It is owned by the State Highway Agency.