US Bridges

TR 125 over Prarie Creek Branch

Good

Mason County, Illinois · 3 MI NE Mason City · Structure no. 063431700000000

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

About this bridge

TR 125 over Prarie Creek Branch is a prestressed concrete box beam or girders - multiple carrying TR 125 over Prarie Creek Branch in Mason 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 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, projected to reach 51 by 2046. The structure is 57 ft (17.4 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 125
CrossesPrarie Creek Branch
Location3 MI NE Mason City
RouteCounty Highway 0
Coordinates40.21809, -89.63098
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 inspectionMarch 2023
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70.3 US tons
Inventory rating42.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length57 ft (17.4 m)
Longest span54 ft (16.6 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic51 by 2046
Trucks0%
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 125 over Prarie Creek Branch built?

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

What condition is TR 125 over Prarie Creek Branch 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 125 over Prarie Creek Branch carry?

About 50 vehicles per day (2024 count).

How long is TR 125 over Prarie Creek Branch?

The structure is 57 ft (17.4 m) long with a longest span of 54 ft (16.6 m) and a deck 24 ft wide.

Who owns TR 125 over Prarie Creek Branch?

It is owned by the Town or Township Highway Agency.