US Bridges

Il 72 over Drainage Ditch

Fair

Ogle County, Illinois · 4.1 MI E JCT Ill 26 · Structure no. 071003600000000

Built
1929
96 years old, rebuilt 1984
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
2,150
2023 count
Owner
State
State Highway Agency

About this bridge

Il 72 over Drainage Ditch is a prestressed concrete stringer/multi-beam or girder carrying Il 72 over Drainage Ditch in Ogle County, Illinois. It was built in 1929 and reconstructed in 1984, so it is 96 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 2,150 vehicles a day, roughly 11% of them trucks, projected to reach 1,976 by 2046. The structure is 65 ft (19.9 m) long and 35 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesIl 72
CrossesDrainage Ditch
Location4.1 MI E JCT Ill 26
RouteState Highway 72
Coordinates42.12844, -89.49906
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.3 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length65 ft (19.9 m)
Longest span62 ft (18.9 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,150 (2023)
Projected traffic1,976 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Il 72 over Drainage Ditch built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1984.

What condition is Il 72 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 February 2024.

How much traffic does Il 72 over Drainage Ditch carry?

About 2,150 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Il 72 over Drainage Ditch?

The structure is 65 ft (19.9 m) long with a longest span of 62 ft (18.9 m) and a deck 35 ft wide.

Who owns Il 72 over Drainage Ditch?

It is owned by the State Highway Agency.