US Bridges

Pierce Ln/Fau 8985 over Rocky Fork Ck

Good

Madison County, Illinois · 1.8MI NW Alton · Structure no. 060690200000000

Built
2010
15 years old
Condition
Good
inspected January 2024
Type
Frame
Concrete
Length
38 ft
1 main span
Daily traffic
2,800
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Pierce Ln/Fau 8985 over Rocky Fork Ck is a concrete frame carrying Pierce Ln/Fau 8985 over Rocky Fork Ck in Madison County, Illinois. It was built in 2010, so it is 15 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,800 vehicles a day, roughly 5% of them trucks, projected to reach 3,317 by 2046. The structure is 38 ft (11.5 m) long and 56 ft wide.

CarriesPierce Ln/Fau 8985
CrossesRocky Fork Ck
Location1.8MI NW Alton
Coordinates38.94601, -90.21412
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length38 ft (11.5 m)
Longest span38 ft (11.5 m)
Deck width56 ft (17 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2024)
Projected traffic3,317 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Pierce Ln/Fau 8985 over Rocky Fork Ck built?

It was built in 2010, making it 15 years old in 2025.

What condition is Pierce Ln/Fau 8985 over Rocky Fork Ck in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Pierce Ln/Fau 8985 over Rocky Fork Ck carry?

About 2,800 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Pierce Ln/Fau 8985 over Rocky Fork Ck?

The structure is 38 ft (11.5 m) long with a longest span of 38 ft (11.5 m) and a deck 56 ft wide.

Who owns Pierce Ln/Fau 8985 over Rocky Fork Ck?

It is owned by the City or Municipal Highway Agency.