US Bridges

CR 350N over Wiley Creek

FairPosted for load

Boone County, Indiana · 00.30 W of SR 75 · Structure no. 0600085

Built
1930
95 years old, rebuilt 1976
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
140
2017 count
Owner
County
County Highway Agency

About this bridge

CR 350N over Wiley Creek is a concrete slab carrying CR 350N over Wiley Creek in Boone County, Indiana. It was built in 1930 and reconstructed in 1976, 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 5 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 140 vehicles a day, roughly 5% of them trucks, projected to reach 210 by 2037. The structure is 30 ft (9.1 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 350N
CrossesWiley Creek
Location00.30 W of SR 75
RouteCounty Highway 350
CountyBoone County
StateIndiana
Coordinates40.09079, -86.62403
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.9 US tons
Inventory rating31.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span20 ft (6.1 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2017)
Projected traffic210 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$1.4 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 350N over Wiley Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1976.

What condition is CR 350N over Wiley Creek 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 CR 350N over Wiley Creek carry?

About 140 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is CR 350N over Wiley Creek?

The structure is 30 ft (9.1 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns CR 350N over Wiley Creek?

It is owned by the County Highway Agency.