US Bridges

TR 212 over Porterfield Creek

Good

Union County, Illinois · 2.5 MI NE of Dongola · Structure no. 091318500000000

Built
1990
35 years old
Condition
Good
inspected April 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
100
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 212 over Porterfield Creek is a prestressed concrete box beam or girders - multiple carrying TR 212 over Porterfield Creek in Union County, Illinois. It was built in 1990, so it is 35 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 100 vehicles a day, roughly 9% of them trucks, projected to reach 101 by 2046. The structure is 32 ft (9.7 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesTR 212
CrossesPorterfield Creek
Location2.5 MI NE of Dongola
RouteCounty Highway 0
Coordinates37.39605, -89.12919
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span29 ft (8.8 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic101 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 212 over Porterfield Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is TR 212 over Porterfield 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 April 2021.

How much traffic does TR 212 over Porterfield Creek carry?

About 100 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is TR 212 over Porterfield Creek?

The structure is 32 ft (9.7 m) long with a longest span of 29 ft (8.8 m) and a deck 24 ft wide.

Who owns TR 212 over Porterfield Creek?

It is owned by the Town or Township Highway Agency.