US Bridges

FAS 603 over Bay Creek

Poor

Pike County, Illinois · .75 MI W Nebo · Structure no. 075301000000000

Built
1963
62 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
258 ft
3 main spans
Daily traffic
725
2023 count
Owner
County
County Highway Agency

About this bridge

FAS 603 over Bay Creek is a steel continuous stringer/multi-beam or girder carrying FAS 603 over Bay Creek in Pike County, Illinois. It was built in 1963, so it is 62 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 3 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 725 vehicles a day, roughly 18% of them trucks, projected to reach 754 by 2046. The structure is 258 ft (78.6 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAS 603
CrossesBay Creek
Location.75 MI W Nebo
RouteCounty Highway 0
Coordinates39.44359, -90.79619
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating31.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length258 ft (78.6 m)
Longest span99 ft (30.2 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic725 (2023)
Projected traffic754 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 603 over Bay Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is FAS 603 over Bay Creek 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 April 2024.

How much traffic does FAS 603 over Bay Creek carry?

About 725 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is FAS 603 over Bay Creek?

The structure is 258 ft (78.6 m) long with a longest span of 99 ft (30.2 m) and a deck 28 ft wide.

Who owns FAS 603 over Bay Creek?

It is owned by the County Highway Agency.