US Bridges

Ill 34 over Stream E of Benton

Good

Franklin County, Illinois · 0.9 MI E Benton · Structure no. 028008400000000

Built
2010
15 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
73 ft
1 main span
Daily traffic
3,850
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 34 over Stream E of Benton is a steel stringer/multi-beam or girder carrying Ill 34 over Stream E of Benton in Franklin County, Illinois. It was built in 2010, so it is 15 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 3,850 vehicles a day, roughly 13% of them trucks, projected to reach 3,990 by 2046. The structure is 73 ft (22.3 m) long and 39 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesIll 34
CrossesStream E of Benton
Location0.9 MI E Benton
RouteState Highway 34
Coordinates37.99318, -88.88649
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.1 US tons
Inventory rating49.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length73 ft (22.3 m)
Longest span68 ft (20.6 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,850 (2023)
Projected traffic3,990 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Ill 34 over Stream E of Benton built?

It was built in 2010, making it 15 years old in 2025.

What condition is Ill 34 over Stream E of Benton 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 2024.

How much traffic does Ill 34 over Stream E of Benton carry?

About 3,850 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Ill 34 over Stream E of Benton?

The structure is 73 ft (22.3 m) long with a longest span of 68 ft (20.6 m) and a deck 39 ft wide.

Who owns Ill 34 over Stream E of Benton?

It is owned by the State Highway Agency.