US Bridges

Ill 16 over Coop Branch E

Fair

Macoupin County, Illinois · 3.8 M E Shipman · Structure no. 059000400000000

Built
1934
91 years old, rebuilt 1980
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
43 ft
1 main span
Daily traffic
1,800
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 16 over Coop Branch E is a concrete tee beam carrying Ill 16 over Coop Branch E in Macoupin County, Illinois. It was built in 1934 and reconstructed in 1980, so it is 91 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 1,800 vehicles a day, roughly 7% of them trucks, projected to reach 2,323 by 2046. The structure is 43 ft (13.1 m) long and 33 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesIll 16
CrossesCoop Branch E
Location3.8 M E Shipman
RouteState Highway 16
CountyMacoupin County
StateIllinois
Coordinates39.11554, -89.97913
Functional classRural Principal Arterial - Other

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating28.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span41 ft (12.6 m)
Deck width33 ft (10.2 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2023)
Projected traffic2,323 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemYes

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 Ill 16 over Coop Branch E built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1980.

What condition is Ill 16 over Coop Branch E 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 April 2024.

How much traffic does Ill 16 over Coop Branch E carry?

About 1,800 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Ill 16 over Coop Branch E?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.6 m) and a deck 33 ft wide.

Who owns Ill 16 over Coop Branch E?

It is owned by the State Highway Agency.