US Bridges

SR 15 over NS RR Rock Run Creek

Fair

Elkhart County, Indiana · 00.10 N of US 33 · Structure no. 004155

Built
1984
41 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
357 ft
5 main spans
Daily traffic
12,678
2020 count
Owner
State
State Highway Agency

About this bridge

SR 15 over NS RR Rock Run Creek is a steel continuous stringer/multi-beam or girder carrying SR 15 over NS RR Rock Run Creek in Elkhart County, Indiana. It was built in 1984, so it is 41 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 12,678 vehicles a day, roughly 17% of them trucks, projected to reach 25,365 by 2030. The structure is 357 ft (108.8 m) long and 73 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR 15
CrossesNS RR Rock Run Creek
Location00.10 N of US 33
RouteState Highway 15
CountyElkhart County
StateIndiana
Coordinates41.59112, -85.83581
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length357 ft (108.8 m)
Longest span80 ft (24.3 m)
Deck width73 ft (22.3 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,678 (2020)
Projected traffic25,365 by 2030
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad and waterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 15 over NS RR Rock Run Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR 15 over NS RR Rock Run 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 June 2023.

How much traffic does SR 15 over NS RR Rock Run Creek carry?

About 12,678 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is SR 15 over NS RR Rock Run Creek?

The structure is 357 ft (108.8 m) long with a longest span of 80 ft (24.3 m) and a deck 73 ft wide.

Who owns SR 15 over NS RR Rock Run Creek?

It is owned by the State Highway Agency.