US Bridges

TR 236 Pin Oak Roa over Silver Creek

Good

Madison County, Illinois · 4 MI NW Marine · Structure no. 060336200000000

Built
2020
5 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
54 ft
1 main span
Daily traffic
50
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 236 Pin Oak Roa over Silver Creek is a concrete slab carrying TR 236 Pin Oak Roa over Silver Creek in Madison County, Illinois. It was built in 2020, so it is 5 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 50 vehicles a day, roughly 20% of them trucks, projected to reach 54 by 2046. The structure is 54 ft (16.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTR 236 Pin Oak Roa
CrossesSilver Creek
Location4 MI NW Marine
RouteCounty Highway 0
Coordinates38.79753, -89.85459
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating63.9 US tons
Inventory rating49.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length54 ft (16.5 m)
Longest span51 ft (15.5 m)
Deck width31 ft (9.3 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic54 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 TR 236 Pin Oak Roa over Silver Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is TR 236 Pin Oak Roa over Silver 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 March 2024.

How much traffic does TR 236 Pin Oak Roa over Silver Creek carry?

About 50 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is TR 236 Pin Oak Roa over Silver Creek?

The structure is 54 ft (16.5 m) long with a longest span of 51 ft (15.5 m) and a deck 31 ft wide.

Who owns TR 236 Pin Oak Roa over Silver Creek?

It is owned by the Town or Township Highway Agency.