US Bridges

ILL.13 over Pankey Branch

Fair

Saline County, Illinois · 0.3 MI E Harrisburg · Structure no. 083004400000000

Built
1972
53 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
137 ft
3 main spans
Daily traffic
3,350
2023 count
Owner
State
State Highway Agency

About this bridge

ILL.13 over Pankey Branch is a prestressed concrete continuous stringer/multi-beam or girder carrying ILL.13 over Pankey Branch in Saline County, Illinois. It was built in 1972, so it is 53 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 3,350 vehicles a day, roughly 11% of them trucks, projected to reach 3,283 by 2046. The structure is 137 ft (41.8 m) long and 46 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesILL.13
CrossesPankey Branch
Location0.3 MI E Harrisburg
RouteState Highway 13
Coordinates37.738, -88.52422
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: 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 rating72.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span44 ft (13.5 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,350 (2023)
Projected traffic3,283 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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.13 over Pankey Branch built?

It was built in 1972, making it 53 years old in 2025.

What condition is ILL.13 over Pankey Branch 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 January 2024.

How much traffic does ILL.13 over Pankey Branch carry?

About 3,350 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is ILL.13 over Pankey Branch?

The structure is 137 ft (41.8 m) long with a longest span of 44 ft (13.5 m) and a deck 46 ft wide.

Who owns ILL.13 over Pankey Branch?

It is owned by the State Highway Agency.