US Bridges

M Avenue over Stream

PoorPosted for load

Page County, Iowa · 069370802 · Structure no. 000000000266890

Built
1900
125 years old, rebuilt 1987
Condition
Poor
inspected November 2022
Type
Truss - Thru
Steel
Length
82 ft
1 main span
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

M Avenue over Stream is a steel truss - thru carrying M Avenue over Stream in Page County, Iowa. It was built in 1900 and reconstructed in 1987, so it is 125 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 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 11 vehicles a day, projected to reach 11 by 2042. The structure is 82 ft (25 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesM Avenue
CrossesStream
Location069370802
RouteCounty Highway 0
StateIowa
Coordinates40.78689, -95.1374
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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating23.4 US tons
Inventory rating11.2 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length82 ft (25 m)
Longest span80 ft (24.4 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was M Avenue over Stream built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1987.

What condition is M Avenue over Stream 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 November 2022.

How much traffic does M Avenue over Stream carry?

About 11 vehicles per day (2022 count).

How long is M Avenue over Stream?

The structure is 82 ft (25 m) long with a longest span of 80 ft (24.4 m) and a deck 18 ft wide.

Who owns M Avenue over Stream?

It is owned by the County Highway Agency.