US Bridges

Riley RD over West Branch Bunch Ditch

Fair

St. Joseph County, Indiana · 01.20 W of Ironwood RD · Structure no. 7100070

Built
1993
32 years old
Condition
Fair
inspected September 2024
Type
Slab
Wood or Timber
Length
34 ft
1 main span
Daily traffic
163
2021 count
Owner
County
County Highway Agency

About this bridge

Riley RD over West Branch Bunch Ditch is a wood or timber slab carrying Riley RD over West Branch Bunch Ditch in St. Joseph County, Indiana. It was built in 1993, so it is 32 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 163 vehicles a day, roughly 14% of them trucks, projected to reach 199 by 2041. The structure is 34 ft (10.3 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRiley RD
CrossesWest Branch Bunch Ditch
Location01.20 W of Ironwood RD
RouteCounty Highway 0
CountySt. Joseph County
StateIndiana
Coordinates41.50789, -86.23677
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating37.4 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length34 ft (10.3 m)
Longest span31 ft (9.4 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic163 (2021)
Projected traffic199 by 2041
Trucks14%
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 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 Riley RD over West Branch Bunch Ditch built?

It was built in 1993, making it 32 years old in 2025.

What condition is Riley RD over West Branch Bunch Ditch 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 September 2024.

How much traffic does Riley RD over West Branch Bunch Ditch carry?

About 163 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is Riley RD over West Branch Bunch Ditch?

The structure is 34 ft (10.3 m) long with a longest span of 31 ft (9.4 m) and a deck 26 ft wide.

Who owns Riley RD over West Branch Bunch Ditch?

It is owned by the County Highway Agency.