US Bridges

Il 31 Rmp 2 US30 over Stream

Good

Kane County, Illinois · Under WB US30 Ramp · Structure no. 045027200000000

Built
2014
11 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
97 ft
6 main spans
Daily traffic
5,250
2023 count
Owner
State
State Highway Agency

About this bridge

Il 31 Rmp 2 US30 over Stream is a concrete culvert carrying Il 31 Rmp 2 US30 over Stream in Kane County, Illinois. It was built in 2014, so it is 11 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 5,250 vehicles a day, roughly 15% of them trucks, projected to reach 2,200 by 2046. The structure is 97 ft (29.6 m) long and 18 ft wide.

CarriesIl 31 Rmp 2 US30
CrossesStream
LocationUnder WB US30 Ramp
Coordinates41.72602, -88.35082
Functional classUrban Other Principal 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating98.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span7 ft (2.1 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,250 (2023)
Projected traffic2,200 by 2046
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 31 Rmp 2 US30 over Stream built?

It was built in 2014, making it 11 years old in 2025.

What condition is Il 31 Rmp 2 US30 over 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 July 2024.

How much traffic does Il 31 Rmp 2 US30 over Stream carry?

About 5,250 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Il 31 Rmp 2 US30 over Stream?

The structure is 97 ft (29.6 m) long with a longest span of 7 ft (2.1 m) and a deck 18 ft wide.

Who owns Il 31 Rmp 2 US30 over Stream?

It is owned by the State Highway Agency.