US Bridges

Town Hall RD-TR230 over Drainage Ditch

PoorPosted for load

Lee County, Illinois · 1.5 MI W Il 251 · Structure no. 052004100000000

Built
1938
87 years old
Condition
Poor
inspected January 2025
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
10
2020 count
Owner
State
State Highway Agency

About this bridge

Town Hall RD-TR230 over Drainage Ditch is a concrete slab carrying Town Hall RD-TR230 over Drainage Ditch in Lee County, Illinois. It was built in 1938, so it is 87 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 3 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 10 vehicles a day, projected to reach 10 by 2046. The structure is 28 ft (8.5 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesTown Hall RD-TR230
CrossesDrainage Ditch
Location1.5 MI W Il 251
RouteCounty Highway 0
CountyLee County
StateIllinois
Coordinates41.75921, -89.11277
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.1 US tons
Inventory rating15.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic10 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$425,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Town Hall RD-TR230 over Drainage Ditch built?

It was built in 1938, making it 87 years old in 2025.

What condition is Town Hall RD-TR230 over Drainage Ditch 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 January 2025.

How much traffic does Town Hall RD-TR230 over Drainage Ditch carry?

About 10 vehicles per day (2020 count).

How long is Town Hall RD-TR230 over Drainage Ditch?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 33 ft wide.

Who owns Town Hall RD-TR230 over Drainage Ditch?

It is owned by the State Highway Agency.