US Bridges

Rock Hill RD FAU89 over FAP 310

Good

Madison County, Illinois · S of 111 · Structure no. 060028800000000

Built
2001
24 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
221 ft
2 main spans
Daily traffic
250
2021 count
Owner
State
State Highway Agency

About this bridge

Rock Hill RD FAU89 over FAP 310 is a steel continuous stringer/multi-beam or girder carrying Rock Hill RD FAU89 over FAP 310 in Madison County, Illinois. It was built in 2001, so it is 24 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 250 vehicles a day, roughly 5% of them trucks, projected to reach 268 by 2046. The structure is 221 ft (67.5 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRock Hill RD FAU89
CrossesFAP 310
LocationS of 111
Coordinates38.86318, -90.05542
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating42.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length221 ft (67.5 m)
Longest span90 ft (27.5 m)
Deck width37 ft (11.2 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2021)
Projected traffic268 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Rock Hill RD FAU89 over FAP 310 built?

It was built in 2001, making it 24 years old in 2025.

What condition is Rock Hill RD FAU89 over FAP 310 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 November 2024.

How much traffic does Rock Hill RD FAU89 over FAP 310 carry?

About 250 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Rock Hill RD FAU89 over FAP 310?

The structure is 221 ft (67.5 m) long with a longest span of 90 ft (27.5 m) and a deck 37 ft wide.

Who owns Rock Hill RD FAU89 over FAP 310?

It is owned by the State Highway Agency.