US Bridges

Riley Road over Blue River

Fair

Whitley County, Indiana · 00.10 S CR 300 N · Structure no. 9200049

Built
1958
67 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
125
2014 count
Owner
County
County Highway Agency

About this bridge

Riley Road over Blue River is a prestressed concrete stringer/multi-beam or girder carrying Riley Road over Blue River in Whitley County, Indiana. It was built in 1958, so it is 67 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 125 vehicles a day, roughly 4% of them trucks, projected to reach 200 by 2038. The structure is 71 ft (21.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRiley Road
CrossesBlue River
Location00.10 S CR 300 N
RouteCounty Highway 0
CountyWhitley County
StateIndiana
Coordinates41.20641, -85.42764
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.7 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length71 ft (21.7 m)
Longest span66 ft (20.2 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2014)
Projected traffic200 by 2038
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Riley Road over Blue River built?

It was built in 1958, making it 67 years old in 2025.

What condition is Riley Road over Blue 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 March 2024.

How much traffic does Riley Road over Blue River carry?

About 125 vehicles per day (2014 count), of which roughly 4% are trucks.

How long is Riley Road over Blue River?

The structure is 71 ft (21.7 m) long with a longest span of 66 ft (20.2 m) and a deck 28 ft wide.

Who owns Riley Road over Blue River?

It is owned by the County Highway Agency.