US Bridges

TR 68 (TH-S27) over Atsf RR

Fair

Marshall County, Illinois · T29N-R2W-3PM Sec 29 · Structure no. 062483400000000

Built
1986
39 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
190 ft
3 main spans
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 68 (TH-S27) over Atsf RR is a prestressed concrete box beam or girders - multiple carrying TR 68 (TH-S27) over Atsf RR in Marshall County, Illinois. It was built in 1986, so it is 39 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 50 vehicles a day, roughly 34% of them trucks, projected to reach 51 by 2046. The structure is 190 ft (57.9 m) long and 24 ft wide.

Location

Open in Google Maps
CarriesTR 68 (TH-S27)
CrossesAtsf RR
LocationT29N-R2W-3PM Sec 29
RouteCounty Highway 0
CountyMarshall County
StateIllinois
Coordinates40.94093, -89.35739
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span77 ft (23.5 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic51 by 2046
Trucks34%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 68 (TH-S27) over Atsf RR built?

It was built in 1986, making it 39 years old in 2025.

What condition is TR 68 (TH-S27) over Atsf RR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does TR 68 (TH-S27) over Atsf RR carry?

About 50 vehicles per day (2024 count), of which roughly 34% are trucks.

How long is TR 68 (TH-S27) over Atsf RR?

The structure is 190 ft (57.9 m) long with a longest span of 77 ft (23.5 m) and a deck 24 ft wide.

Who owns TR 68 (TH-S27) over Atsf RR?

It is owned by the Town or Township Highway Agency.