US Bridges

Local over Drainage

PoorPosted for load

Montgomery County, Iowa · 073371904 · Structure no. 000000000256341

Built
1987
38 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
65 ft
3 main spans
Daily traffic
5
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Drainage is a wood or timber stringer/multi-beam or girder carrying Local over Drainage in Montgomery County, Iowa. It was built in 1987, so it is 38 years old, younger 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 4 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: posted for load restriction.

It carries about 5 vehicles a day, projected to reach 5 by 2044. The structure is 65 ft (19.8 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLocal
CrossesDrainage
Location073371904
RouteCounty Highway 0
StateIowa
Coordinates41.11434, -95.15584
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
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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating22.9 US tons
Inventory rating18.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length65 ft (19.8 m)
Longest span23 ft (7 m)
Deck width21 ft (6.3 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2022)
Projected traffic5 by 2044
Trucks0%
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Drainage built?

It was built in 1987, making it 38 years old in 2025.

What condition is Local over 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 over Drainage carry?

About 5 vehicles per day (2022 count).

How long is Local over Drainage?

The structure is 65 ft (19.8 m) long with a longest span of 23 ft (7 m) and a deck 21 ft wide.

Who owns Local over Drainage?

It is owned by the County Highway Agency.