US Bridges

TR 59 over Sen Beck Ditch

Good

Massac County, Illinois · 3 MI East Mermet Lk · Structure no. 064305600000000

Built
1979
46 years old
Condition
Good
inspected February 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
175
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 59 over Sen Beck Ditch is a prestressed concrete box beam or girders - multiple carrying TR 59 over Sen Beck Ditch in Massac County, Illinois. It was built in 1979, so it is 46 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 175 vehicles a day, roughly 25% of them trucks, projected to reach 177 by 2046. The structure is 46 ft (14 m) long and 24 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesTR 59
CrossesSen Beck Ditch
Location3 MI East Mermet Lk
RouteCounty Highway 0
Coordinates37.25748, -88.78598
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span44 ft (13.4 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2020)
Projected traffic177 by 2046
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
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 59 over Sen Beck Ditch built?

It was built in 1979, making it 46 years old in 2025.

What condition is TR 59 over Sen Beck Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2022.

How much traffic does TR 59 over Sen Beck Ditch carry?

About 175 vehicles per day (2020 count), of which roughly 25% are trucks.

How long is TR 59 over Sen Beck Ditch?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 24 ft wide.

Who owns TR 59 over Sen Beck Ditch?

It is owned by the Town or Township Highway Agency.