US Bridges

Ill 164 over Smith Creek

Fair

Henderson County, Illinois · 2.3 MI E of Oquawka · Structure no. 036007000000000

Built
2011
14 years old
Condition
Fair
inspected November 2021
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
130 ft
2 main spans
Daily traffic
1,500
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 164 over Smith Creek is a steel continuous stringer/multi-beam or girder carrying Ill 164 over Smith Creek in Henderson County, Illinois. It was built in 2011, so it is 14 years old, younger 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 1,500 vehicles a day, roughly 12% of them trucks, projected to reach 1,616 by 2046. The structure is 130 ft (39.6 m) long and 35 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesIll 164
CrossesSmith Creek
Location2.3 MI E of Oquawka
RouteState Highway 164
CountyHenderson County
StateIllinois
Coordinates40.93168, -90.89487
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating56.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length130 ft (39.6 m)
Longest span65 ft (19.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2023)
Projected traffic1,616 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ill 164 over Smith Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is Ill 164 over Smith 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 November 2021.

How much traffic does Ill 164 over Smith Creek carry?

About 1,500 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Ill 164 over Smith Creek?

The structure is 130 ft (39.6 m) long with a longest span of 65 ft (19.8 m) and a deck 35 ft wide.

Who owns Ill 164 over Smith Creek?

It is owned by the State Highway Agency.