US Bridges

Mount Zion Road over Trib to Sanitary Ditch

FairPosted for load

Boone County, Indiana · 00.30 E of CR200 W · Structure no. 0600064

Built
1930
95 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
120
2017 count
Owner
County
County Highway Agency

About this bridge

Mount Zion Road over Trib to Sanitary Ditch is a steel stringer/multi-beam or girder carrying Mount Zion Road over Trib to Sanitary Ditch in Boone 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 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. Its operating status is: posted for load restriction.

It carries about 120 vehicles a day, roughly 5% of them trucks, projected to reach 180 by 2037. The structure is 30 ft (9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMount Zion Road
CrossesTrib to Sanitary Ditch
Location00.30 E of CR200 W
RouteCounty Highway 0
CountyBoone County
StateIndiana
Coordinates40.0312, -86.50199
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.5 US tons
Inventory rating24.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9 m)
Longest span28 ft (8.4 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2017)
Projected traffic180 by 2037
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.6 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mount Zion Road over Trib to Sanitary Ditch built?

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

What condition is Mount Zion Road over Trib to Sanitary 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 2023.

How much traffic does Mount Zion Road over Trib to Sanitary Ditch carry?

About 120 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Mount Zion Road over Trib to Sanitary Ditch?

The structure is 30 ft (9 m) long with a longest span of 28 ft (8.4 m) and a deck 24 ft wide.

Who owns Mount Zion Road over Trib to Sanitary Ditch?

It is owned by the County Highway Agency.