US Bridges

CR 850N over Mud Creek

Fair

Boone County, Indiana · 00.60 W of CR 300 E · Structure no. 0600029

Built
1900
125 years old, rebuilt 1986
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
290
2017 count
Owner
County
County Highway Agency

About this bridge

CR 850N over Mud Creek is a prestressed concrete box beam or girders - multiple carrying CR 850N over Mud Creek in Boone County, Indiana. It was built in 1900 and reconstructed in 1986, so it is 125 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.

It carries about 290 vehicles a day, roughly 5% of them trucks, projected to reach 440 by 2037. The structure is 53 ft (16.1 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 850N
CrossesMud Creek
Location00.60 W of CR 300 E
RouteCounty Highway 850
CountyBoone County
StateIndiana
Coordinates40.16275, -86.40204
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating26.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length53 ft (16.1 m)
Longest span49 ft (15 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (2017)
Projected traffic440 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 850N over Mud Creek built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1986.

What condition is CR 850N over Mud 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 850N over Mud Creek carry?

About 290 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is CR 850N over Mud Creek?

The structure is 53 ft (16.1 m) long with a longest span of 49 ft (15 m) and a deck 24 ft wide.

Who owns CR 850N over Mud Creek?

It is owned by the County Highway Agency.