US Bridges

TR-498A (sullens R over Conner Branch

FairPosted for load

Marion County, Illinois · 3 MI E of Iuka · Structure no. 061321500000000

Built
1900
125 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
25
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-498A (sullens R over Conner Branch is a steel stringer/multi-beam or girder carrying TR-498A (sullens R over Conner Branch in Marion County, Illinois. It was built in 1900, so it is 125 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, roughly 32% of them trucks, projected to reach 25 by 2046. The structure is 36 ft (11 m) long and 14 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesTR-498A (sullens R
CrossesConner Branch
Location3 MI E of Iuka
RouteCounty Highway 0
CountyMarion County
StateIllinois
Coordinates38.63169, -88.73059
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15.3 US tons
Inventory rating9.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width14 ft (4.4 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2046
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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-498A (sullens R over Conner Branch built?

It was built in 1900, making it 125 years old in 2025.

What condition is TR-498A (sullens R over Conner Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does TR-498A (sullens R over Conner Branch carry?

About 25 vehicles per day (2022 count), of which roughly 32% are trucks.

How long is TR-498A (sullens R over Conner Branch?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 14 ft wide.

Who owns TR-498A (sullens R over Conner Branch?

It is owned by the Town or Township Highway Agency.