US Bridges

Local Road over Minor Drainage

PoorClosed to traffic

Montgomery County, Iowa · 073360104 · Structure no. 000000000255981

Built
1971
54 years old
Condition
Poor
inspected June 2024
Type
Truss - Thru
Steel
Length
95 ft
1 main span
Daily traffic
20
2021 count
Owner
County
County Highway Agency

About this bridge

Local Road over Minor Drainage is a steel truss - thru carrying Local Road over Minor Drainage in Montgomery County, Iowa. It was built in 1971, so it is 54 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 0 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: closed to all traffic.

It carries about 20 vehicles a day, projected to reach 20 by 2044. The structure is 95 ft (29 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesLocal Road
CrossesMinor Drainage
Location073360104
RouteCounty Highway 0
CountyMontgomery County
StateIowa
Coordinates41.15351, -94.94665
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
Deck0 FailedOut of service and beyond corrective action.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length95 ft (29 m)
Longest span94 ft (28.7 m)
Deck width22 ft (6.6 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2021)
Projected traffic20 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local Road over Minor Drainage built?

It was built in 1971, making it 54 years old in 2025.

What condition is Local Road over Minor Drainage 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 Local Road over Minor Drainage carry?

About 20 vehicles per day (2021 count).

How long is Local Road over Minor Drainage?

The structure is 95 ft (29 m) long with a longest span of 94 ft (28.7 m) and a deck 22 ft wide.

Who owns Local Road over Minor Drainage?

It is owned by the County Highway Agency.