US Bridges

CR 350 S over Unnamed Ditch

PoorPosted for load

Sullivan County, Indiana · 00.00 CO Line Rd-Cr 350 S · Structure no. 7700130

Built
1930
95 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
35 ft
1 main span
Daily traffic
1,020
2024 count
Owner
County
County Highway Agency

About this bridge

CR 350 S over Unnamed Ditch is a concrete stringer/multi-beam or girder carrying CR 350 S over Unnamed Ditch in Sullivan County, Indiana. It was built in 1930, so it is 95 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,020 vehicles a day, roughly 5% of them trucks, projected to reach 1,260 by 2044. The structure is 35 ft (10.6 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 350 S
CrossesUnnamed Ditch
Location00.00 CO Line Rd-Cr 350 S
RouteCounty Highway 403
StateIndiana
Coordinates39.03087, -87.24079
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating20.9 US tons
Inventory rating18 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length35 ft (10.6 m)
Longest span31 ft (9.4 m)
Deck width56 ft (17.1 m)
Roadway width54 ft (16.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,020 (2024)
Projected traffic1,260 by 2044
Trucks5%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 350 S over Unnamed Ditch built?

It was built in 1930, making it 95 years old in 2025.

What condition is CR 350 S over Unnamed Ditch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does CR 350 S over Unnamed Ditch carry?

About 1,020 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is CR 350 S over Unnamed Ditch?

The structure is 35 ft (10.6 m) long with a longest span of 31 ft (9.4 m) and a deck 56 ft wide.

Who owns CR 350 S over Unnamed Ditch?

It is owned by the County Highway Agency.