US Bridges

Or 61 S over Peno CR

Poor

Pike County, Missouri · S 1 T 54 N R 4 W · Structure no. 4491

Built
1949
76 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
270 ft
4 main spans
Daily traffic
114
2024 count
Owner
State
State Highway Agency

About this bridge

Or 61 S over Peno CR is a steel continuous stringer/multi-beam or girder carrying Or 61 S over Peno CR in Pike County, Missouri. It was built in 1949, so it is 76 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 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.

It carries about 114 vehicles a day, roughly 14% of them trucks, projected to reach 165 by 2044. The structure is 270 ft (82.3 m) long and 32 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesOr 61 S
CrossesPeno CR
LocationS 1 T 54 N R 4 W
RouteState Highway 61
Coordinates39.48041, -91.30385
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length270 ft (82.3 m)
Longest span78 ft (23.8 m)
Deck width32 ft (9.7 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic114 (2024)
Projected traffic165 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Or 61 S over Peno CR built?

It was built in 1949, making it 76 years old in 2025.

What condition is Or 61 S over Peno CR 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 June 2024.

How much traffic does Or 61 S over Peno CR carry?

About 114 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Or 61 S over Peno CR?

The structure is 270 ft (82.3 m) long with a longest span of 78 ft (23.8 m) and a deck 32 ft wide.

Who owns Or 61 S over Peno CR?

It is owned by the State Highway Agency.