US Bridges

TR 30(STRAWN Rd) over Lake Fork Creek

Poor

Macon County, Illinois · 9.0 MI W Maroa · Structure no. 058323100000000

Built
1976
49 years old
Condition
Poor
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
50
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 30(STRAWN Rd) over Lake Fork Creek is a prestressed concrete box beam or girders - multiple carrying TR 30(STRAWN Rd) over Lake Fork Creek in Macon County, Illinois. It was built in 1976, so it is 49 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 50 vehicles a day, roughly 8% of them trucks, projected to reach 51 by 2046. The structure is 41 ft (12.5 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 30(STRAWN Rd)
CrossesLake Fork Creek
Location9.0 MI W Maroa
RouteCounty Highway 0
Coordinates40.04051, -89.12331
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.2 US tons
Inventory rating0 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length41 ft (12.5 m)
Longest span40 ft (12.2 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic51 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$140,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 30(STRAWN Rd) over Lake Fork Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is TR 30(STRAWN Rd) over Lake Fork Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does TR 30(STRAWN Rd) over Lake Fork Creek carry?

About 50 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is TR 30(STRAWN Rd) over Lake Fork Creek?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.

Who owns TR 30(STRAWN Rd) over Lake Fork Creek?

It is owned by the Town or Township Highway Agency.