US Bridges

US 67 over Miss Rvr RR & Ia 461

PoorPosted for load

Scott County, Iowa · At Davenport · Structure no. 000000000047020

Built
1940
85 years old, rebuilt 2003
Condition
Poor
inspected July 2024
Type
Arch - Thru
Steel
Length
3,854 ft
5 main spans
Daily traffic
26,500
2022 count
Owner
State
State Highway Agency

About this bridge

US 67 over Miss Rvr RR & Ia 461 is a steel arch - thru carrying US 67 over Miss Rvr RR & Ia 461 in Scott County, Iowa. It was built in 1940 and reconstructed in 2003, so it is 85 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 26,500 vehicles a day, roughly 2% of them trucks, projected to reach 26,500 by 2044. The structure is 3,854 ft (1,174.7 m) long and 48 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesUS 67
CrossesMiss Rvr RR & Ia 461
LocationAt Davenport
RouteU.S. Route 67
StateIowa
Coordinates41.51565, -90.58179
Functional classUrban Other Principal Arterial

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
Deck7 GoodSome minor problems.
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 protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating38.6 US tons
Inventory rating23.3 US tons

Structure

Structure typeArch - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans5 (+24 approach)
Design loadHS 15
Structure length3,854 ft (1,174.7 m)
Longest span538 ft (164 m)
Deck width48 ft (14.7 m)
Roadway width46 ft (14 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic26,500 (2022)
Projected traffic26,500 by 2044
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway, waterway and railroad
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 67 over Miss Rvr RR & Ia 461 built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2003.

What condition is US 67 over Miss Rvr RR & Ia 461 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 July 2024.

How much traffic does US 67 over Miss Rvr RR & Ia 461 carry?

About 26,500 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is US 67 over Miss Rvr RR & Ia 461?

The structure is 3,854 ft (1,174.7 m) long with a longest span of 538 ft (164 m) and a deck 48 ft wide.

Who owns US 67 over Miss Rvr RR & Ia 461?

It is owned by the State Highway Agency.