US Bridges

J-Road TR-102 over Rockhouse Creek

Good

Monroe County, Illinois · Road Dist.No. 3 · Structure no. 067311300000000

Built
1982
43 years old
Condition
Good
inspected February 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
400
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

J-Road TR-102 over Rockhouse Creek is a prestressed concrete box beam or girders - multiple carrying J-Road TR-102 over Rockhouse Creek in Monroe County, Illinois. It was built in 1982, so it is 43 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 400 vehicles a day, roughly 12% of them trucks, projected to reach 424 by 2046. The structure is 52 ft (15.8 m) long and 24 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesJ-Road TR-102
CrossesRockhouse Creek
LocationRoad Dist.No. 3
RouteCounty Highway 0
CountyMonroe County
StateIllinois
Coordinates38.28592, -90.05855
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span52 ft (15.8 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2024)
Projected traffic424 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 J-Road TR-102 over Rockhouse Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is J-Road TR-102 over Rockhouse Creek 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 February 2022.

How much traffic does J-Road TR-102 over Rockhouse Creek carry?

About 400 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is J-Road TR-102 over Rockhouse Creek?

The structure is 52 ft (15.8 m) long with a longest span of 52 ft (15.8 m) and a deck 24 ft wide.

Who owns J-Road TR-102 over Rockhouse Creek?

It is owned by the Town or Township Highway Agency.