US Bridges

Wood ST over Ditch

Fair

Montgomery County, Illinois · Hillsboro · Structure no. 068600500000000

Built
1920
105 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Concrete
Length
44 ft
1 main span
Daily traffic
850
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Wood ST over Ditch is a concrete tee beam carrying Wood ST over Ditch in Montgomery County, Illinois. It was built in 1920, so it is 105 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 850 vehicles a day, roughly 11% of them trucks, projected to reach 859 by 2046. The structure is 44 ft (13.4 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesWood ST
CrossesDitch
LocationHillsboro
RouteCity Street 0
CountyMontgomery County
StateIllinois
Coordinates39.15892, -89.48846
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width33 ft (10 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2020)
Projected traffic859 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Wood ST over Ditch built?

It was built in 1920, making it 105 years old in 2025.

What condition is Wood ST over 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 2023.

How much traffic does Wood ST over Ditch carry?

About 850 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is Wood ST over Ditch?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 33 ft wide.

Who owns Wood ST over Ditch?

It is owned by the City or Municipal Highway Agency.