US Bridges

109th Avenue over West Creek

Fair

Lake County, Indiana · 00.30 W. of US 41 · Structure no. 4500115

Built
1966
59 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
11,794
2019 count
Owner
County
County Highway Agency

About this bridge

109th Avenue over West Creek is a prestressed concrete box beam or girders - multiple carrying 109th Avenue over West Creek in Lake County, Indiana. It was built in 1966, so it is 59 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 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 11,794 vehicles a day, roughly 16% of them trucks, projected to reach 14,391 by 2040. The structure is 39 ft (12 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries109th Avenue
CrossesWest Creek
Location00.30 W. of US 41
RouteCity Street 0
CountyLake County
StateIndiana
Coordinates41.4212, -87.47733
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length39 ft (12 m)
Longest span37 ft (11.4 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,794 (2019)
Projected traffic14,391 by 2040
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$158,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 109th Avenue over West Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is 109th Avenue over West Creek 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 109th Avenue over West Creek carry?

About 11,794 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is 109th Avenue over West Creek?

The structure is 39 ft (12 m) long with a longest span of 37 ft (11.4 m) and a deck 27 ft wide.

Who owns 109th Avenue over West Creek?

It is owned by the County Highway Agency.