US Bridges

Il Rt. 9 over Inter. Stream

Good

McLean County, Illinois · 2.17 Mi. E.Of Il 122 · Structure no. 057202800000000

Built
2004
21 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
3,600
2023 count
Owner
State
State Highway Agency

About this bridge

Il Rt. 9 over Inter. Stream is a concrete continuous culvert carrying Il Rt. 9 over Inter. Stream in McLean County, Illinois. It was built in 2004, so it is 21 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 3,600 vehicles a day, roughly 8% of them trucks, projected to reach 3,586 by 2046. The structure is 21 ft (6.5 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesIl Rt. 9
CrossesInter. Stream
Location2.17 Mi. E.Of Il 122
RouteState Highway 9
Coordinates40.48719, -89.13389
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating38.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.5 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2023)
Projected traffic3,586 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Il Rt. 9 over Inter. Stream built?

It was built in 2004, making it 21 years old in 2025.

What condition is Il Rt. 9 over Inter. Stream 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 March 2024.

How much traffic does Il Rt. 9 over Inter. Stream carry?

About 3,600 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Il Rt. 9 over Inter. Stream?

The structure is 21 ft (6.5 m) long with a longest span of 10 ft (3.2 m).

Who owns Il Rt. 9 over Inter. Stream?

It is owned by the State Highway Agency.