US Bridges

Ill 34 over Pinhook Creek

Fair

Hardin County, Illinois · 2.1 MI S of Herod · Structure no. 035000500000000

Built
1924
101 years old, rebuilt 2008
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
77 ft
2 main spans
Daily traffic
1,200
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 34 over Pinhook Creek is a prestressed concrete box beam or girders - multiple carrying Ill 34 over Pinhook Creek in Hardin County, Illinois. It was built in 1924 and reconstructed in 2008, so it is 101 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 1,200 vehicles a day, roughly 15% of them trucks, projected to reach 1,465 by 2046. The structure is 77 ft (23.4 m) long and 31 ft wide. If it were closed, the detour would be 42.3 mi (68 km).

Location

Open in Google Maps
CarriesIll 34
CrossesPinhook Creek
Location2.1 MI S of Herod
RouteState Highway 34
CountyHardin County
StateIllinois
Coordinates37.56173, -88.40776
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length77 ft (23.4 m)
Longest span39 ft (11.8 m)
Deck width31 ft (9.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2023)
Projected traffic1,465 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.3 mi (68 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$258,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ill 34 over Pinhook Creek built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 2008.

What condition is Ill 34 over Pinhook 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 August 2023.

How much traffic does Ill 34 over Pinhook Creek carry?

About 1,200 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Ill 34 over Pinhook Creek?

The structure is 77 ft (23.4 m) long with a longest span of 39 ft (11.8 m) and a deck 31 ft wide.

Who owns Ill 34 over Pinhook Creek?

It is owned by the State Highway Agency.