US Bridges

US 41 Nbsb over Gtw RR

Fair

Lake County, Indiana · 02.80 N US 30 · Structure no. 015651

Built
2018
7 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
165 ft
3 main spans
Daily traffic
48,200
2018 count
Owner
State
State Highway Agency

About this bridge

US 41 Nbsb over Gtw RR is a prestressed concrete continuous tee beam carrying US 41 Nbsb over Gtw RR in Lake County, Indiana. It was built in 2018, so it is 7 years old, younger than the Indiana average of 46.6 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.

It carries about 48,200 vehicles a day, roughly 4% of them trucks, projected to reach 66,400 by 2038. The structure is 165 ft (50.2 m) long and 74 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesUS 41 Nbsb
CrossesGtw RR
Location02.80 N US 30
RouteU.S. Route 41
CountyLake County
StateIndiana
Coordinates41.53165, -87.47118
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.9 US tons
Inventory rating56.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length165 ft (50.2 m)
Longest span67 ft (20.4 m)
Deck width74 ft (22.5 m)
Roadway width54 ft (16.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,200 (2018)
Projected traffic66,400 by 2038
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed2.5 mi (4 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 41 Nbsb over Gtw RR built?

It was built in 2018, making it 7 years old in 2025.

What condition is US 41 Nbsb over Gtw RR 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 2024.

How much traffic does US 41 Nbsb over Gtw RR carry?

About 48,200 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is US 41 Nbsb over Gtw RR?

The structure is 165 ft (50.2 m) long with a longest span of 67 ft (20.4 m) and a deck 74 ft wide.

Who owns US 41 Nbsb over Gtw RR?

It is owned by the State Highway Agency.