US Bridges

TR 47 a over Senachwine Cr.

Good

Putnam County, Illinois · 670 N 235 E · Structure no. 078311000000000

Built
1991
34 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
550
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 47 a over Senachwine Cr. is a prestressed concrete box beam or girders - multiple carrying TR 47 a over Senachwine Cr. in Putnam County, Illinois. It was built in 1991, so it is 34 years old, younger 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 550 vehicles a day, roughly 21% of them trucks, projected to reach 598 by 2046. The structure is 84 ft (25.6 m) long and 30 ft wide.

CarriesTR 47 a
CrossesSenachwine Cr.
Location670 N 235 E
RouteCounty Highway 0
Coordinates41.20099, -89.42188
Functional classRural Local

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 inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span81 ft (24.7 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2023)
Projected traffic598 by 2046
Trucks21%
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 47 a over Senachwine Cr. built?

It was built in 1991, making it 34 years old in 2025.

What condition is TR 47 a over Senachwine Cr. 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 April 2024.

How much traffic does TR 47 a over Senachwine Cr. carry?

About 550 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is TR 47 a over Senachwine Cr.?

The structure is 84 ft (25.6 m) long with a longest span of 81 ft (24.7 m) and a deck 30 ft wide.

Who owns TR 47 a over Senachwine Cr.?

It is owned by the Town or Township Highway Agency.