US Bridges

M-70/REDWOOD over Neely Branch

Poor

Page County, Iowa · 069361806 · Structure no. 000000000266350

Built
1962
63 years old
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
157 ft
3 main spans
Daily traffic
678
2022 count
Owner
County
County Highway Agency

About this bridge

M-70/REDWOOD over Neely Branch is a steel stringer/multi-beam or girder carrying M-70/REDWOOD over Neely Branch in Page County, Iowa. It was built in 1962, so it is 63 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.

It carries about 678 vehicles a day, roughly 15% of them trucks, projected to reach 678 by 2043. The structure is 157 ft (47.9 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesM-70/REDWOOD
CrossesNeely Branch
Location069361806
RouteCounty Highway 0
CountyPage County
StateIowa
Coordinates40.77991, -95.03311
Functional classRural Major Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating28.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length157 ft (47.9 m)
Longest span68 ft (20.7 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic678 (2022)
Projected traffic678 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$1.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was M-70/REDWOOD over Neely Branch built?

It was built in 1962, making it 63 years old in 2025.

What condition is M-70/REDWOOD over Neely Branch 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 2023.

How much traffic does M-70/REDWOOD over Neely Branch carry?

About 678 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is M-70/REDWOOD over Neely Branch?

The structure is 157 ft (47.9 m) long with a longest span of 68 ft (20.7 m) and a deck 30 ft wide.

Who owns M-70/REDWOOD over Neely Branch?

It is owned by the County Highway Agency.