US Bridges

Old Porter Road over Salt Creek

Good

Porter County, Indiana · 00.20 W Salt Creek RD · Structure no. 6400088

Built
1970
55 years old, rebuilt 2019
Condition
Good
inspected May 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
84 ft
1 main span
Daily traffic
2,650
2018 count
Owner
County
County Highway Agency

About this bridge

Old Porter Road over Salt Creek is a prestressed concrete continuous tee beam carrying Old Porter Road over Salt Creek in Porter County, Indiana. It was built in 1970 and reconstructed in 2019, so it is 55 years old, older than the Indiana average of 46.6 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 2,650 vehicles a day, roughly 6% of them trucks, projected to reach 5,010 by 2038. The structure is 84 ft (25.6 m) long and 30 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesOld Porter Road
CrossesSalt Creek
Location00.20 W Salt Creek RD
RouteCity Street 0
StateIndiana
Coordinates41.59658, -87.14402
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length84 ft (25.6 m)
Longest span82 ft (25.1 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,650 (2018)
Projected traffic5,010 by 2038
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Porter Road over Salt Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2019.

What condition is Old Porter Road over Salt Creek 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 May 2024.

How much traffic does Old Porter Road over Salt Creek carry?

About 2,650 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Old Porter Road over Salt Creek?

The structure is 84 ft (25.6 m) long with a longest span of 82 ft (25.1 m) and a deck 30 ft wide.

Who owns Old Porter Road over Salt Creek?

It is owned by the County Highway Agency.