US Bridges

CR 600 E over Sulphur Creek

PoorPosted for load

Sullivan County, Indiana · 00.29 S of CR 600 N · Structure no. 7700143

Built
1925
100 years old
Condition
Poor
inspected July 2024
Type
Arch - Deck
Concrete
Length
42 ft
1 main span
Daily traffic
140
2024 count
Owner
County
County Highway Agency

About this bridge

CR 600 E over Sulphur Creek is a concrete arch - deck carrying CR 600 E over Sulphur Creek in Sullivan County, Indiana. It was built in 1925, so it is 100 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 140 vehicles a day, roughly 1% of them trucks, projected to reach 160 by 2044. The structure is 42 ft (12.8 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 600 E
CrossesSulphur Creek
Location00.29 S of CR 600 N
RouteCounty Highway 315
StateIndiana
Coordinates39.16758, -87.29681
Functional classRural Local

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
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
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating16 US tons
Inventory rating12 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span38 ft (11.5 m)
Deck width19 ft (5.8 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2024)
Projected traffic160 by 2044
Trucks1%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$875,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 600 E over Sulphur Creek built?

It was built in 1925, making it 100 years old in 2025.

What condition is CR 600 E over Sulphur Creek 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 600 E over Sulphur Creek carry?

About 140 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is CR 600 E over Sulphur Creek?

The structure is 42 ft (12.8 m) long with a longest span of 38 ft (11.5 m) and a deck 19 ft wide.

Who owns CR 600 E over Sulphur Creek?

It is owned by the County Highway Agency.