US Bridges

Ill 13 over North Fork Saline R

Poor

Gallatin County, Illinois · 2.5 MI W Ill 1 · Structure no. 030001500000000

Built
1964
61 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
252 ft
5 main spans
Daily traffic
3,700
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 13 over North Fork Saline R is a steel continuous stringer/multi-beam or girder carrying Ill 13 over North Fork Saline R in Gallatin County, Illinois. It was built in 1964, so it is 61 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,700 vehicles a day, roughly 12% of them trucks, projected to reach 3,535 by 2046. The structure is 252 ft (76.8 m) long and 36 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesIll 13
CrossesNorth Fork Saline R
Location2.5 MI W Ill 1
RouteState Highway 13
Coordinates37.74391, -88.33087
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length252 ft (76.8 m)
Longest span53 ft (16.2 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2023)
Projected traffic3,535 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$810,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ill 13 over North Fork Saline R built?

It was built in 1964, making it 61 years old in 2025.

What condition is Ill 13 over North Fork Saline R in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Ill 13 over North Fork Saline R carry?

About 3,700 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Ill 13 over North Fork Saline R?

The structure is 252 ft (76.8 m) long with a longest span of 53 ft (16.2 m) and a deck 36 ft wide.

Who owns Ill 13 over North Fork Saline R?

It is owned by the State Highway Agency.