US Bridges

Blackwood DR over Drainage Ditch

Poor

Jackson County, Illinois · Murphysboro · Structure no. 039600600000000

Built
1900
125 years old
Condition
Poor
inspected February 2025
Type
Culvert
Steel
Length
22 ft
3 main spans
Daily traffic
10
2022 count
Owner
Local
Other Local Agency

About this bridge

Blackwood DR over Drainage Ditch is a steel culvert carrying Blackwood DR over Drainage Ditch in Jackson County, Illinois. It was built in 1900, so it is 125 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 10 vehicles a day, projected to reach 1,061 by 2046. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesBlackwood DR
CrossesDrainage Ditch
LocationMurphysboro
CountyJackson County
StateIllinois
Coordinates37.78388, -89.34203
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length22 ft (6.8 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic1,061 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 Blackwood DR over Drainage Ditch built?

It was built in 1900, making it 125 years old in 2025.

What condition is Blackwood DR over Drainage Ditch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2025.

How much traffic does Blackwood DR over Drainage Ditch carry?

About 10 vehicles per day (2022 count).

How long is Blackwood DR over Drainage Ditch?

The structure is 22 ft (6.8 m) long with a longest span of 6 ft (1.8 m).

Who owns Blackwood DR over Drainage Ditch?

It is owned by the Other Local Agency.