US Bridges

Bunker-Hilcarlnvl- over Dry Fork

Fair

Macoupin County, Illinois · 9MI-S-CARLINVILLE · Structure no. 059328800000000

Built
1981
44 years old
Condition
Fair
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
126 ft
3 main spans
Daily traffic
600
2021 count
Owner
County
County Highway Agency

About this bridge

Bunker-Hilcarlnvl- over Dry Fork is a prestressed concrete box beam or girders - multiple carrying Bunker-Hilcarlnvl- over Dry Fork in Macoupin County, Illinois. It was built in 1981, so it is 44 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 600 vehicles a day, roughly 12% of them trucks, projected to reach 606 by 2046. The structure is 126 ft (38.3 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesBunker-Hilcarlnvl-
CrossesDry Fork
Location9MI-S-CARLINVILLE
RouteCounty Highway 0
CountyMacoupin County
StateIllinois
Coordinates39.17038, -89.92757
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length126 ft (38.3 m)
Longest span40 ft (12.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2021)
Projected traffic606 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Bunker-Hilcarlnvl- over Dry Fork built?

It was built in 1981, making it 44 years old in 2025.

What condition is Bunker-Hilcarlnvl- over Dry Fork 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 Bunker-Hilcarlnvl- over Dry Fork carry?

About 600 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Bunker-Hilcarlnvl- over Dry Fork?

The structure is 126 ft (38.3 m) long with a longest span of 40 ft (12.3 m) and a deck 28 ft wide.

Who owns Bunker-Hilcarlnvl- over Dry Fork?

It is owned by the County Highway Agency.