US Bridges

Doty Road over Mount Liberty Creek

PoorPosted for load

Brown County, Indiana · 0.1 MI S of Mt Liberty RD · Structure no. 0700094

Built
1979
46 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

Doty Road over Mount Liberty Creek is a steel stringer/multi-beam or girder carrying Doty Road over Mount Liberty Creek in Brown County, Indiana. It was built in 1979, so it is 46 years old, younger 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 20 by 2044. The structure is 39 ft (11.8 m) long and 11 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesDoty Road
CrossesMount Liberty Creek
Location0.1 MI S of Mt Liberty RD
RouteCounty Highway 0
CountyBrown County
StateIndiana
Coordinates39.18332, -86.14091
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating25.1 US tons
Inventory rating15 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOpen grating
Main spans1
Design loadUnknown
Structure length39 ft (11.8 m)
Longest span37 ft (11.4 m)
Deck width11 ft (3.5 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic20 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$850,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Doty Road over Mount Liberty Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Doty Road over Mount Liberty 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 October 2024.

How much traffic does Doty Road over Mount Liberty Creek carry?

About 10 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Doty Road over Mount Liberty Creek?

The structure is 39 ft (11.8 m) long with a longest span of 37 ft (11.4 m) and a deck 11 ft wide.

Who owns Doty Road over Mount Liberty Creek?

It is owned by the County Highway Agency.