US Bridges

CR 75 N (90 N) over Morrison Creek

PoorPosted for load

Sullivan County, Indiana · 00.04 W of CR 200 E · Structure no. 7700160

Built
1935
90 years old
Condition
Poor
inspected July 2024
Type
Truss - Thru
Steel
Length
47 ft
1 main span
Daily traffic
190
2024 count
Owner
County
County Highway Agency

About this bridge

CR 75 N (90 N) over Morrison Creek is a steel truss - thru carrying CR 75 N (90 N) over Morrison Creek in Sullivan County, Indiana. It was built in 1935, so it is 90 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 190 vehicles a day, roughly 2% of them trucks, projected to reach 220 by 2044. The structure is 47 ft (14.3 m) long and 17 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCR 75 N (90 N)
CrossesMorrison Creek
Location00.04 W of CR 200 E
RouteCounty Highway 231
CountySullivan County
StateIndiana
Coordinates39.0979, -87.37302
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating28.3 US tons
Inventory rating16.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span44 ft (13.5 m)
Deck width17 ft (5.3 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2024)
Projected traffic220 by 2044
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$629,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 75 N (90 N) over Morrison Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is CR 75 N (90 N) over Morrison 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 75 N (90 N) over Morrison Creek carry?

About 190 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is CR 75 N (90 N) over Morrison Creek?

The structure is 47 ft (14.3 m) long with a longest span of 44 ft (13.5 m) and a deck 17 ft wide.

Who owns CR 75 N (90 N) over Morrison Creek?

It is owned by the County Highway Agency.