US Bridges

Il 100 over Youngblood Hollow Br

Good

Madison County, Illinois · 1.6MI E Jersey CO LN · Structure no. 060205000000000

Built
2008
17 years old
Condition
Good
inspected November 2023
Type
Culvert
Steel
Length
23 ft
2 main spans
Daily traffic
6,600
2023 count
Owner
State
State Highway Agency

About this bridge

Il 100 over Youngblood Hollow Br is a steel culvert carrying Il 100 over Youngblood Hollow Br in Madison County, Illinois. It was built in 2008, so it is 17 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 6,600 vehicles a day, roughly 9% of them trucks, projected to reach 6,099 by 2046. The structure is 23 ft (7.1 m) long. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesIl 100
CrossesYoungblood Hollow Br
Location1.6MI E Jersey CO LN
RouteState Highway 100
CountyMadison County
StateIllinois
Coordinates38.92517, -90.24757
Functional classUrban 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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 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 rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (7.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2023)
Projected traffic6,099 by 2046
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 100 over Youngblood Hollow Br built?

It was built in 2008, making it 17 years old in 2025.

What condition is Il 100 over Youngblood Hollow Br 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 November 2023.

How much traffic does Il 100 over Youngblood Hollow Br carry?

About 6,600 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Il 100 over Youngblood Hollow Br?

The structure is 23 ft (7.1 m) long with a longest span of 10 ft (3 m).

Who owns Il 100 over Youngblood Hollow Br?

It is owned by the State Highway Agency.