US Bridges

Robb Road (tr 45) over FAI-57

Good

Marion County, Illinois · 2 MI N Patoka Int · Structure no. 061005800000000

Built
1969
56 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
228 ft
4 main spans
Daily traffic
250
2022 count
Owner
State
State Highway Agency

About this bridge

Robb Road (tr 45) over FAI-57 is a steel continuous stringer/multi-beam or girder carrying Robb Road (tr 45) over FAI-57 in Marion County, Illinois. It was built in 1969, so it is 56 years old, older 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 250 vehicles a day, roughly 12% of them trucks, projected to reach 328 by 2046. The structure is 228 ft (69.4 m) long and 30 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesRobb Road (tr 45)
CrossesFAI-57
Location2 MI N Patoka Int
RouteCounty Highway 0
CountyMarion County
StateIllinois
Coordinates38.77858, -88.87275
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.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length228 ft (69.4 m)
Longest span70 ft (21.3 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic328 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

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 Robb Road (tr 45) over FAI-57 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Robb Road (tr 45) over FAI-57 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 August 2023.

How much traffic does Robb Road (tr 45) over FAI-57 carry?

About 250 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Robb Road (tr 45) over FAI-57?

The structure is 228 ft (69.4 m) long with a longest span of 70 ft (21.3 m) and a deck 30 ft wide.

Who owns Robb Road (tr 45) over FAI-57?

It is owned by the State Highway Agency.