US Bridges

TR 172 over Penn Central RR

PoorPosted for load

Madison County, Illinois · 1.0 M S Ill 140 · Structure no. 060991900000000

Built
1901
124 years old
Condition
Poor
inspected October 2023
Type
Slab
Concrete Continuous
Length
119 ft
1 main span
Daily traffic
350
2021 count
Owner
Railroad
Railroad

About this bridge

TR 172 over Penn Central RR is a concrete continuous slab carrying TR 172 over Penn Central RR in Madison County, Illinois. It was built in 1901, so it is 124 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 350 vehicles a day, roughly 6% of them trucks, projected to reach 375 by 2046. The structure is 119 ft (36.3 m) long and 17 ft wide.

Location

Open in Google Maps
CarriesTR 172
CrossesPenn Central RR
Location1.0 M S Ill 140
RouteCounty Highway 0
CountyMadison County
StateIllinois
Coordinates38.88428, -89.91771
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating25.7 US tons
Inventory rating15.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadUnknown
Structure length119 ft (36.3 m)
Longest span35 ft (10.7 m)
Deck width17 ft (5.3 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2021)
Projected traffic375 by 2046
Trucks6%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byRailroad
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$110,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was TR 172 over Penn Central RR built?

It was built in 1901, making it 124 years old in 2025.

What condition is TR 172 over Penn Central RR 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 October 2023.

How much traffic does TR 172 over Penn Central RR carry?

About 350 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is TR 172 over Penn Central RR?

The structure is 119 ft (36.3 m) long with a longest span of 35 ft (10.7 m) and a deck 17 ft wide.

Who owns TR 172 over Penn Central RR?

It is owned by the Railroad.