US Bridges

Harco Blacktop over Stream

Good

Saline County, Illinois · 1.5 MI S of Ill 34 · Structure no. 083323400000000

Built
2009
16 years old
Condition
Good
inspected October 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
1,400
2020 count
Owner
County
County Highway Agency

About this bridge

Harco Blacktop over Stream is a prestressed concrete box beam or girders - multiple carrying Harco Blacktop over Stream in Saline County, Illinois. It was built in 2009, so it is 16 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,400 vehicles a day, roughly 17% of them trucks, projected to reach 1,414 by 2046. The structure is 76 ft (23.3 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesHarco Blacktop
CrossesStream
Location1.5 MI S of Ill 34
RouteCounty Highway 0
CountySaline County
StateIllinois
Coordinates37.82461, -88.65179
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating62.2 US tons
Inventory rating50 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length76 ft (23.3 m)
Longest span74 ft (22.6 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2020)
Projected traffic1,414 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Harco Blacktop over Stream built?

It was built in 2009, making it 16 years old in 2025.

What condition is Harco Blacktop over Stream in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2021.

How much traffic does Harco Blacktop over Stream carry?

About 1,400 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is Harco Blacktop over Stream?

The structure is 76 ft (23.3 m) long with a longest span of 74 ft (22.6 m) and a deck 30 ft wide.

Who owns Harco Blacktop over Stream?

It is owned by the County Highway Agency.