US Bridges

US 51 over Icrr Atkrr

Fair

Marion County, Illinois · 3.9 MI N Il 161 Centralia · Structure no. 061007700000000

Built
1983
42 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
206 ft
3 main spans
Daily traffic
4,050
2023 count
Owner
State
State Highway Agency

About this bridge

US 51 over Icrr Atkrr is a steel continuous stringer/multi-beam or girder carrying US 51 over Icrr Atkrr in Marion County, Illinois. It was built in 1983, so it is 42 years old, younger 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,050 vehicles a day, roughly 12% of them trucks, projected to reach 4,293 by 2046. The structure is 206 ft (62.8 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 51
CrossesIcrr Atkrr
Location3.9 MI N Il 161 Centralia
RouteU.S. Route 51
Coordinates38.58088, -89.10835
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating39.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length206 ft (62.8 m)
Longest span76 ft (23.1 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,050 (2023)
Projected traffic4,293 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 51 over Icrr Atkrr built?

It was built in 1983, making it 42 years old in 2025.

What condition is US 51 over Icrr Atkrr 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 January 2023.

How much traffic does US 51 over Icrr Atkrr carry?

About 4,050 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is US 51 over Icrr Atkrr?

The structure is 206 ft (62.8 m) long with a longest span of 76 ft (23.1 m) and a deck 47 ft wide.

Who owns US 51 over Icrr Atkrr?

It is owned by the State Highway Agency.