US Bridges

Ill 78 over Mid Br Copperas CR

Fair

Fulton County, Illinois · 4.5M S of Ill 116 · Structure no. 029200200000000

Built
1964
61 years old
Condition
Fair
inspected September 2023
Type
Culvert
Other
Length
23 ft
2 main spans
Daily traffic
3,800
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 78 over Mid Br Copperas CR is a other culvert carrying Ill 78 over Mid Br Copperas CR in Fulton County, Illinois. It was built in 1964, so it is 61 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 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 3,800 vehicles a day, roughly 5% of them trucks, projected to reach 4,040 by 2046. The structure is 23 ft (7 m) long. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesIll 78
CrossesMid Br Copperas CR
Location4.5M S of Ill 116
RouteState Highway 78
CountyFulton County
StateIllinois
Coordinates40.63306, -90.01276
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating98.2 US tons

Structure

Structure typeCulvert
MaterialOther
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2023)
Projected traffic4,040 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$110,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ill 78 over Mid Br Copperas CR built?

It was built in 1964, making it 61 years old in 2025.

What condition is Ill 78 over Mid Br Copperas CR 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 September 2023.

How much traffic does Ill 78 over Mid Br Copperas CR carry?

About 3,800 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Ill 78 over Mid Br Copperas CR?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Ill 78 over Mid Br Copperas CR?

It is owned by the State Highway Agency.