US Bridges

Il 116 over Langan Creek

Good

Iroquois County, Illinois · 3.97M E Ford C LN · Structure no. 038201000000000

Built
1992
33 years old
Condition
Good
inspected January 2021
Type
Culvert
Concrete
Length
37 ft
2 main spans
Daily traffic
850
2023 count
Owner
State
State Highway Agency

About this bridge

Il 116 over Langan Creek is a concrete culvert carrying Il 116 over Langan Creek in Iroquois County, Illinois. It was built in 1992, so it is 33 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 850 vehicles a day, roughly 32% of them trucks, projected to reach 758 by 2046. The structure is 37 ft (11.3 m) long and 98 ft wide.

CarriesIl 116
CrossesLangan Creek
Location3.97M E Ford C LN
RouteState Highway 116
Coordinates40.88201, -88.05329
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.3 US tons
Inventory rating47.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span17 ft (5.2 m)
Deck width98 ft (29.9 m)
Roadway width91 ft (27.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2023)
Projected traffic758 by 2046
Trucks32%
Lanes on structure2
Traffic directionTwo-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 116 over Langan Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Il 116 over Langan Creek 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 January 2021.

How much traffic does Il 116 over Langan Creek carry?

About 850 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is Il 116 over Langan Creek?

The structure is 37 ft (11.3 m) long with a longest span of 17 ft (5.2 m) and a deck 98 ft wide.

Who owns Il 116 over Langan Creek?

It is owned by the State Highway Agency.