US Bridges

Shipman Blacktop over Macoupin Creek

Fair

Macoupin County, Illinois · 7.7MI N JCT 16 · Structure no. 059004900000000

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
399 ft
4 main spans
Daily traffic
1,550
2021 count
Owner
State
State Highway Agency

About this bridge

Shipman Blacktop over Macoupin Creek is a steel continuous stringer/multi-beam or girder carrying Shipman Blacktop over Macoupin Creek in Macoupin County, Illinois. It was built in 1990, so it is 35 years old, younger 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 6 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 1,550 vehicles a day, roughly 7% of them trucks, projected to reach 1,566 by 2046. The structure is 399 ft (121.6 m) long and 35 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesShipman Blacktop
CrossesMacoupin Creek
Location7.7MI N JCT 16
RouteCounty Highway 0
CountyMacoupin County
StateIllinois
Coordinates39.20159, -89.97894
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length399 ft (121.6 m)
Longest span112 ft (34.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,550 (2021)
Projected traffic1,566 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Shipman Blacktop over Macoupin Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Shipman Blacktop over Macoupin Creek 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 2023.

How much traffic does Shipman Blacktop over Macoupin Creek carry?

About 1,550 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Shipman Blacktop over Macoupin Creek?

The structure is 399 ft (121.6 m) long with a longest span of 112 ft (34.1 m) and a deck 35 ft wide.

Who owns Shipman Blacktop over Macoupin Creek?

It is owned by the State Highway Agency.