US Bridges

N. Smiley ST over Engle Creek

Good

St. Clair County, Illinois · 1.7MI N Old US 50 · Structure no. 082650400000000

Built
1995
30 years old
Condition
Good
inspected September 2021
Type
Frame
Concrete
Length
36 ft
2 main spans
Daily traffic
1,100
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

N. Smiley ST over Engle Creek is a concrete frame carrying N. Smiley ST over Engle Creek in St. Clair County, Illinois. It was built in 1995, so it is 30 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 1,100 vehicles a day, roughly 3% of them trucks, projected to reach 1,162 by 2046. The structure is 36 ft (10.9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN. Smiley ST
CrossesEngle Creek
Location1.7MI N Old US 50
CountySt. Clair County
StateIllinois
Coordinates38.60962, -89.90227
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length36 ft (10.9 m)
Longest span16 ft (4.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2023)
Projected traffic1,162 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 N. Smiley ST over Engle Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is N. Smiley ST over Engle 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 September 2021.

How much traffic does N. Smiley ST over Engle Creek carry?

About 1,100 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is N. Smiley ST over Engle Creek?

The structure is 36 ft (10.9 m) long with a longest span of 16 ft (4.9 m) and a deck 24 ft wide.

Who owns N. Smiley ST over Engle Creek?

It is owned by the City or Municipal Highway Agency.