US Bridges

Grand Blvd over Deep River

Fair

Lake County, Indiana · 00.40 S. of Central Ave · Structure no. 4500129

Built
1975
50 years old, rebuilt 2010
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
260 ft
3 main spans
Daily traffic
3,862
2018 count
Owner
County
County Highway Agency

About this bridge

Grand Blvd over Deep River is a prestressed concrete continuous stringer/multi-beam or girder carrying Grand Blvd over Deep River in Lake County, Indiana. It was built in 1975 and reconstructed in 2010, so it is 50 years old, older 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 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 3,862 vehicles a day, roughly 3% of them trucks, projected to reach 4,713 by 2038. The structure is 260 ft (79.1 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesGrand Blvd
CrossesDeep River
Location00.40 S. of Central Ave
RouteCity Street 0
StateIndiana
Coordinates41.56492, -87.26038
Functional classUrban Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating36.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length260 ft (79.1 m)
Longest span87 ft (26.4 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,862 (2018)
Projected traffic4,713 by 2038
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Grand Blvd over Deep River built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2010.

What condition is Grand Blvd over Deep River 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 August 2024.

How much traffic does Grand Blvd over Deep River carry?

About 3,862 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Grand Blvd over Deep River?

The structure is 260 ft (79.1 m) long with a longest span of 87 ft (26.4 m) and a deck 42 ft wide.

Who owns Grand Blvd over Deep River?

It is owned by the County Highway Agency.