US Bridges

Ill. 13 over Mid Fork Saline Riv.

Fair

Saline County, Illinois · 1.5 MI E Harrisburg · Structure no. 083200600000000

Built
1975
50 years old
Condition
Fair
inspected January 2025
Type
Culvert
Steel
Length
41 ft
2 main spans
Daily traffic
3,350
2023 count
Owner
State
State Highway Agency

About this bridge

Ill. 13 over Mid Fork Saline Riv. is a steel culvert carrying Ill. 13 over Mid Fork Saline Riv. in Saline County, Illinois. It was built in 1975, so it is 50 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 41 ft (12.6 m) long. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesIll. 13
CrossesMid Fork Saline Riv.
Location1.5 MI E Harrisburg
RouteState Highway 13
CountySaline County
StateIllinois
Coordinates37.73807, -88.50328
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 15
Structure length41 ft (12.6 m)
Longest span19 ft (5.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 Mid Fork Saline Riv. built?

It was built in 1975, making it 50 years old in 2025.

What condition is Ill. 13 over Mid Fork Saline Riv. 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 2025.

How much traffic does Ill. 13 over Mid Fork Saline Riv. carry?

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

How long is Ill. 13 over Mid Fork Saline Riv.?

The structure is 41 ft (12.6 m) long with a longest span of 19 ft (5.7 m).

Who owns Ill. 13 over Mid Fork Saline Riv.?

It is owned by the State Highway Agency.