US Bridges

Il 16 over West Shoal Creek

Good

Montgomery County, Illinois · .7M E Litchfield Lk · Structure no. 068000700000000

Built
1924
101 years old, rebuilt 2002
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
157 ft
3 main spans
Daily traffic
6,600
2023 count
Owner
State
State Highway Agency

About this bridge

Il 16 over West Shoal Creek is a steel continuous stringer/multi-beam or girder carrying Il 16 over West Shoal Creek in Montgomery County, Illinois. It was built in 1924 and reconstructed in 2002, so it is 101 years old, older 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 6,600 vehicles a day, roughly 8% of them trucks, projected to reach 7,171 by 2046. The structure is 157 ft (48 m) long and 43 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesIl 16
CrossesWest Shoal Creek
Location.7M E Litchfield Lk
RouteState Highway 16
CountyMontgomery County
StateIllinois
Coordinates39.17431, -89.59683
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating63.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length157 ft (48 m)
Longest span56 ft (17.2 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2023)
Projected traffic7,171 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 16 over West Shoal Creek built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 2002.

What condition is Il 16 over West Shoal 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 October 2024.

How much traffic does Il 16 over West Shoal Creek carry?

About 6,600 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Il 16 over West Shoal Creek?

The structure is 157 ft (48 m) long with a longest span of 56 ft (17.2 m) and a deck 43 ft wide.

Who owns Il 16 over West Shoal Creek?

It is owned by the State Highway Agency.