US Bridges

Il 3 over NSRR

Fair

Madison County, Illinois · 0.6MI N of Il 143 · Structure no. 060006300000000

Built
1947
78 years old, rebuilt 1994
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
294 ft
4 main spans
Daily traffic
9,950
2023 count
Owner
State
State Highway Agency

About this bridge

Il 3 over NSRR is a steel continuous stringer/multi-beam or girder carrying Il 3 over NSRR in Madison County, Illinois. It was built in 1947 and reconstructed in 1994, so it is 78 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 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 9,950 vehicles a day, roughly 11% of them trucks, projected to reach 11,235 by 2046. The structure is 294 ft (89.6 m) long and 75 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesIl 3
CrossesNSRR
Location0.6MI N of Il 143
RouteState Highway 3
Coordinates38.8659, -90.11177
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length294 ft (89.6 m)
Longest span89 ft (27.1 m)
Deck width75 ft (22.9 m)
Roadway width70 ft (21.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,950 (2023)
Projected traffic11,235 by 2046
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 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 Il 3 over NSRR built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1994.

What condition is Il 3 over NSRR 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 September 2023.

How much traffic does Il 3 over NSRR carry?

About 9,950 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Il 3 over NSRR?

The structure is 294 ft (89.6 m) long with a longest span of 89 ft (27.1 m) and a deck 75 ft wide.

Who owns Il 3 over NSRR?

It is owned by the State Highway Agency.