US Bridges

Il 106 over I-72 / US 36

Good

Pike County, Illinois · 1.2M E Mo Border · Structure no. 075015500000000

Built
1998
27 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
224 ft
2 main spans
Daily traffic
875
2023 count
Owner
State
State Highway Agency

About this bridge

Il 106 over I-72 / US 36 is a prestressed concrete continuous stringer/multi-beam or girder carrying Il 106 over I-72 / US 36 in Pike County, Illinois. It was built in 1998, so it is 27 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 875 vehicles a day, roughly 9% of them trucks, projected to reach 1,102 by 2046. The structure is 224 ft (68.2 m) long and 65 ft wide.

CarriesIl 106
CrossesI-72 / US 36
Location1.2M E Mo Border
RouteState Highway 106
Coordinates39.72762, -91.3374
Functional classRural Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.2 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length224 ft (68.2 m)
Longest span87 ft (26.6 m)
Deck width65 ft (19.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic875 (2023)
Projected traffic1,102 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 106 over I-72 / US 36 built?

It was built in 1998, making it 27 years old in 2025.

What condition is Il 106 over I-72 / US 36 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 October 2024.

How much traffic does Il 106 over I-72 / US 36 carry?

About 875 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Il 106 over I-72 / US 36?

The structure is 224 ft (68.2 m) long with a longest span of 87 ft (26.6 m) and a deck 65 ft wide.

Who owns Il 106 over I-72 / US 36?

It is owned by the State Highway Agency.