US Bridges

TR-117 over Icg RR

PoorPosted for load

Jefferson County, Illinois · 3.75 MI E Harmony · Structure no. 041990800000000

Built
1960
65 years old
Condition
Poor
inspected January 2025
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
102 ft
5 main spans
Daily traffic
75
2021 count
Owner
Railroad
Railroad

About this bridge

TR-117 over Icg RR is a wood or timber stringer/multi-beam or girder carrying TR-117 over Icg RR in Jefferson County, Illinois. It was built in 1960, so it is 65 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 75 vehicles a day, roughly 9% of them trucks, projected to reach 76 by 2046. The structure is 102 ft (31.1 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesTR-117
CrossesIcg RR
Location3.75 MI E Harmony
RouteCounty Highway 0
CountyJefferson County
StateIllinois
Coordinates38.40529, -88.72075
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2025
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating20.4 US tons
Inventory rating14.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadUnknown
Structure length102 ft (31.1 m)
Longest span22 ft (6.7 m)
Deck width20 ft (6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2021)
Projected traffic76 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 km)
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$317,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was TR-117 over Icg RR built?

It was built in 1960, making it 65 years old in 2025.

What condition is TR-117 over Icg 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 January 2025.

How much traffic does TR-117 over Icg RR carry?

About 75 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is TR-117 over Icg RR?

The structure is 102 ft (31.1 m) long with a longest span of 22 ft (6.7 m) and a deck 20 ft wide.

Who owns TR-117 over Icg RR?

It is owned by the Railroad.