US Bridges

FAS 398 - Ch 20 over Haw Creek

Fair

Knox County, Illinois · E.CTR-2-T9NR2E · Structure no. 048330600000000

Built
1988
37 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
181 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 398 - Ch 20 over Haw Creek is a prestressed concrete box beam or girders - multiple carrying FAS 398 - Ch 20 over Haw Creek in Knox County, Illinois. It was built in 1988, so it is 37 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 100 vehicles a day, roughly 41% of them trucks, projected to reach 202 by 2046. The structure is 181 ft (55.3 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFAS 398 - Ch 20
CrossesHaw Creek
LocationE.CTR-2-T9NR2E
RouteCounty Highway 0
Coordinates40.79417, -90.23444
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length181 ft (55.3 m)
Longest span60 ft (18.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic202 by 2046
Trucks41%
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 398 - Ch 20 over Haw Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is FAS 398 - Ch 20 over Haw 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 February 2025.

How much traffic does FAS 398 - Ch 20 over Haw Creek carry?

About 100 vehicles per day (2022 count), of which roughly 41% are trucks.

How long is FAS 398 - Ch 20 over Haw Creek?

The structure is 181 ft (55.3 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.

Who owns FAS 398 - Ch 20 over Haw Creek?

It is owned by the County Highway Agency.