US Bridges

TR 68 (th-S 27) over Crow Creek

Fair

Marshall County, Illinois · T29N-R2W-3PM Sec 29 · Structure no. 062483200000000

Built
1983
42 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
162 ft
3 main spans
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 68 (th-S 27) over Crow Creek is a prestressed concrete box beam or girders - multiple carrying TR 68 (th-S 27) over Crow Creek in Marshall County, Illinois. It was built in 1983, so it is 42 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 162 ft (49.4 m) long and 24 ft wide.

Location

Open in Google Maps
CarriesTR 68 (th-S 27)
CrossesCrow Creek
LocationT29N-R2W-3PM Sec 29
RouteCounty Highway 0
CountyMarshall County
StateIllinois
Coordinates40.94827, -89.35737
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable 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 length162 ft (49.4 m)
Longest span67 ft (20.4 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 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
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 68 (th-S 27) over Crow Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is TR 68 (th-S 27) over Crow Creek 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 March 2023.

How much traffic does TR 68 (th-S 27) over Crow Creek carry?

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

How long is TR 68 (th-S 27) over Crow Creek?

The structure is 162 ft (49.4 m) long with a longest span of 67 ft (20.4 m) and a deck 24 ft wide.

Who owns TR 68 (th-S 27) over Crow Creek?

It is owned by the Town or Township Highway Agency.