US Bridges

FAS 601 over Bay Creek

Fair

Pike County, Illinois · 3 M N Pittsfield · Structure no. 075330700000000

Built
2007
18 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
179 ft
3 main spans
Daily traffic
1,350
2023 count
Owner
County
County Highway Agency

About this bridge

FAS 601 over Bay Creek is a prestressed concrete box beam or girders - multiple carrying FAS 601 over Bay Creek in Pike County, Illinois. It was built in 2007, so it is 18 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 1,350 vehicles a day, roughly 10% of them trucks, projected to reach 1,682 by 2046. The structure is 179 ft (54.5 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAS 601
CrossesBay Creek
Location3 M N Pittsfield
RouteCounty Highway 0
Coordinates39.64953, -90.81842
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length179 ft (54.5 m)
Longest span65 ft (19.8 m)
Deck width33 ft (10.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,350 (2023)
Projected traffic1,682 by 2046
Trucks10%
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 601 over Bay Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is FAS 601 over Bay 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 March 2023.

How much traffic does FAS 601 over Bay Creek carry?

About 1,350 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is FAS 601 over Bay Creek?

The structure is 179 ft (54.5 m) long with a longest span of 65 ft (19.8 m) and a deck 33 ft wide.

Who owns FAS 601 over Bay Creek?

It is owned by the County Highway Agency.