US Bridges

Otter Creek over N Trib. of Coal Run

Good

LaSalle County, Illinois · 2 300 S. of RT.18 · Structure no. 050801900000000

Built
2012
13 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
1,500
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Otter Creek over N Trib. of Coal Run is a concrete culvert carrying Otter Creek over N Trib. of Coal Run in LaSalle County, Illinois. It was built in 2012, so it is 13 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 1,500 vehicles a day, roughly 7% of them trucks, projected to reach 1,515 by 2046. The structure is 22 ft (6.6 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesOtter Creek
CrossesN Trib. of Coal Run
Location2 300 S. of RT.18
CountyLaSalle County
StateIllinois
Coordinates41.11454, -88.81624
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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length22 ft (6.6 m)
Longest span11 ft (3.3 m)
Deck width40 ft (12.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2020)
Projected traffic1,515 by 2046
Trucks7%
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 Otter Creek over N Trib. of Coal Run built?

It was built in 2012, making it 13 years old in 2025.

What condition is Otter Creek over N Trib. of Coal Run 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 April 2022.

How much traffic does Otter Creek over N Trib. of Coal Run carry?

About 1,500 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Otter Creek over N Trib. of Coal Run?

The structure is 22 ft (6.6 m) long with a longest span of 11 ft (3.3 m) and a deck 40 ft wide.

Who owns Otter Creek over N Trib. of Coal Run?

It is owned by the City or Municipal Highway Agency.