US Bridges

Ill 143 over Rocky Ford Creek

Fair

Bond County, Illinois · In Pierron · Structure no. 003003300000000

Built
1921
104 years old, rebuilt 1976
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
2,200
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 143 over Rocky Ford Creek is a prestressed concrete box beam or girders - multiple carrying Ill 143 over Rocky Ford Creek in Bond County, Illinois. It was built in 1921 and reconstructed in 1976, so it is 104 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 2,200 vehicles a day, roughly 12% of them trucks, projected to reach 2,323 by 2046. The structure is 26 ft (7.9 m) long and 35 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesIll 143
CrossesRocky Ford Creek
LocationIn Pierron
RouteState Highway 143
CountyBond County
StateIllinois
Coordinates38.77893, -89.56537
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: 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 rating80.7 US tons
Inventory rating50 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width35 ft (10.7 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2023)
Projected traffic2,323 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 Ill 143 over Rocky Ford Creek built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1976.

What condition is Ill 143 over Rocky Ford 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 May 2024.

How much traffic does Ill 143 over Rocky Ford Creek carry?

About 2,200 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Ill 143 over Rocky Ford Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 35 ft wide.

Who owns Ill 143 over Rocky Ford Creek?

It is owned by the State Highway Agency.