US Bridges

FAS 469-CH 9 over Little Mackinaw Rv

Poor

Tazewell County, Illinois · NE-15-T23NR5W · Structure no. 090302400000000

Built
1961
64 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
146 ft
3 main spans
Daily traffic
675
2023 count
Owner
County
County Highway Agency

About this bridge

FAS 469-CH 9 over Little Mackinaw Rv is a steel stringer/multi-beam or girder carrying FAS 469-CH 9 over Little Mackinaw Rv in Tazewell County, Illinois. It was built in 1961, so it is 64 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 675 vehicles a day, roughly 5% of them trucks, projected to reach 657 by 2046. The structure is 146 ft (44.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFAS 469-CH 9
CrossesLittle Mackinaw Rv
LocationNE-15-T23NR5W
RouteCounty Highway 0
Coordinates40.45159, -89.41852
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating22.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length146 ft (44.5 m)
Longest span57 ft (17.4 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic675 (2023)
Projected traffic657 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 FAS 469-CH 9 over Little Mackinaw Rv built?

It was built in 1961, making it 64 years old in 2025.

What condition is FAS 469-CH 9 over Little Mackinaw Rv 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 January 2024.

How much traffic does FAS 469-CH 9 over Little Mackinaw Rv carry?

About 675 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is FAS 469-CH 9 over Little Mackinaw Rv?

The structure is 146 ft (44.5 m) long with a longest span of 57 ft (17.4 m) and a deck 31 ft wide.

Who owns FAS 469-CH 9 over Little Mackinaw Rv?

It is owned by the County Highway Agency.