US Bridges

TR-157 over Drainage Ditch

Fair

LaSalle County, Illinois · N 39th E 190 · Structure no. 050343700000000

Built
1972
53 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
100
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-157 over Drainage Ditch is a prestressed concrete box beam or girders - multiple carrying TR-157 over Drainage Ditch in LaSalle County, Illinois. It was built in 1972, so it is 53 years old, older 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 5 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 101 by 2046. The structure is 29 ft (8.8 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesTR-157
CrossesDrainage Ditch
LocationN 39th E 190
RouteCounty Highway 0
CountyLaSalle County
StateIllinois
Coordinates41.49827, -89.13054
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic101 by 2046
Trucks5%
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-157 over Drainage Ditch built?

It was built in 1972, making it 53 years old in 2025.

What condition is TR-157 over Drainage Ditch 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 June 2024.

How much traffic does TR-157 over Drainage Ditch carry?

About 100 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is TR-157 over Drainage Ditch?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 26 ft wide.

Who owns TR-157 over Drainage Ditch?

It is owned by the Town or Township Highway Agency.