US Bridges

TR 188 over N Fork Salt Creek

PoorPosted for load

De Witt County, Illinois · 3.3 MI NW of Dewitt · Structure no. 020307900000000

Built
1911
114 years old
Condition
Poor
inspected February 2022
Type
Truss - Thru
Steel
Length
104 ft
1 main span
Daily traffic
25
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 188 over N Fork Salt Creek is a steel truss - thru carrying TR 188 over N Fork Salt Creek in De Witt County, Illinois. It was built in 1911, so it is 114 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, roughly 40% of them trucks, projected to reach 101 by 2046. The structure is 104 ft (31.7 m) long and 14 ft wide.

CarriesTR 188
CrossesN Fork Salt Creek
Location3.3 MI NW of Dewitt
RouteCounty Highway 0
Coordinates40.22328, -88.82155
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating20.4 US tons
Inventory rating12.1 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length104 ft (31.7 m)
Longest span100 ft (30.5 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic101 by 2046
Trucks40%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$192,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 188 over N Fork Salt Creek built?

It was built in 1911, making it 114 years old in 2025.

What condition is TR 188 over N Fork Salt Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2022.

How much traffic does TR 188 over N Fork Salt Creek carry?

About 25 vehicles per day (2022 count), of which roughly 40% are trucks.

How long is TR 188 over N Fork Salt Creek?

The structure is 104 ft (31.7 m) long with a longest span of 100 ft (30.5 m) and a deck 14 ft wide.

Who owns TR 188 over N Fork Salt Creek?

It is owned by the Town or Township Highway Agency.