US Bridges

Redwood Ave over BNSF RR

PoorPosted for load

Montgomery County, Iowa · 071361804 · Structure no. 000000000254210

Built
1913
112 years old
Condition
Poor
inspected May 2024
Type
Truss - Thru
Steel
Length
136 ft
1 main span
Daily traffic
15
2021 count
Owner
Railroad
Railroad

About this bridge

Redwood Ave over BNSF RR is a steel truss - thru carrying Redwood Ave over BNSF RR in Montgomery County, Iowa. It was built in 1913, so it is 112 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 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. Its operating status is: posted for load restriction.

It carries about 15 vehicles a day, projected to reach 15 by 2044. The structure is 136 ft (41.5 m) long and 17 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRedwood Ave
CrossesBNSF RR
Location071361804
RouteCounty Highway 0
CountyMontgomery County
StateIowa
Coordinates40.95634, -95.03813
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.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating28.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+6 approach)
Design loadUnknown
Structure length136 ft (41.5 m)
Longest span34 ft (10.4 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2021)
Projected traffic15 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byRailroad
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Redwood Ave over BNSF RR built?

It was built in 1913, making it 112 years old in 2025.

What condition is Redwood Ave over BNSF RR 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 May 2024.

How much traffic does Redwood Ave over BNSF RR carry?

About 15 vehicles per day (2021 count).

How long is Redwood Ave over BNSF RR?

The structure is 136 ft (41.5 m) long with a longest span of 34 ft (10.4 m) and a deck 17 ft wide.

Who owns Redwood Ave over BNSF RR?

It is owned by the Railroad.