US Bridges

TR 41 over Mason-Tazewell Ditch

Good

Mason County, Illinois · 3 E of Topeka · Structure no. 063330600000000

Built
1965
60 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
101 ft
3 main spans
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 41 over Mason-Tazewell Ditch is a steel continuous stringer/multi-beam or girder carrying TR 41 over Mason-Tazewell Ditch in Mason County, Illinois. It was built in 1965, so it is 60 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 50 vehicles a day, roughly 50% of them trucks, projected to reach 51 by 2046. The structure is 101 ft (30.8 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 41
CrossesMason-Tazewell Ditch
Location3 E of Topeka
RouteCounty Highway 0
Coordinates40.33946, -89.87431
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating34 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length101 ft (30.8 m)
Longest span36 ft (11 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic51 by 2046
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 41 over Mason-Tazewell Ditch built?

It was built in 1965, making it 60 years old in 2025.

What condition is TR 41 over Mason-Tazewell 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 March 2023.

How much traffic does TR 41 over Mason-Tazewell Ditch carry?

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

How long is TR 41 over Mason-Tazewell Ditch?

The structure is 101 ft (30.8 m) long with a longest span of 36 ft (11 m) and a deck 24 ft wide.

Who owns TR 41 over Mason-Tazewell Ditch?

It is owned by the Town or Township Highway Agency.