US Bridges

6th ST over Over BNSF RR & Valley ST

Fair

Des Moines County, Iowa · 690205000 · Structure no. 000000000000881

Built
1993
32 years old
Condition
Fair
inspected September 2020
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
376 ft
5 main spans
Daily traffic
2,420
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

6th ST over Over BNSF RR & Valley ST is a prestressed concrete stringer/multi-beam or girder carrying 6th ST over Over BNSF RR & Valley ST in Des Moines County, Iowa. It was built in 1993, so it is 32 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,420 vehicles a day, roughly 2% of them trucks, projected to reach 2,420 by 2043. The structure is 376 ft (114.6 m) long and 52 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries6th ST
CrossesOver BNSF RR & Valley ST
Location690205000
RouteCity Street 0
CountyDes Moines County
StateIowa
Coordinates40.80901, -91.10664
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2020
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length376 ft (114.6 m)
Longest span96 ft (29.3 m)
Deck width52 ft (15.8 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,420 (2022)
Projected traffic2,420 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 6th ST over Over BNSF RR & Valley ST built?

It was built in 1993, making it 32 years old in 2025.

What condition is 6th ST over Over BNSF RR & Valley ST in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2020.

How much traffic does 6th ST over Over BNSF RR & Valley ST carry?

About 2,420 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 6th ST over Over BNSF RR & Valley ST?

The structure is 376 ft (114.6 m) long with a longest span of 96 ft (29.3 m) and a deck 52 ft wide.

Who owns 6th ST over Over BNSF RR & Valley ST?

It is owned by the City or Municipal Highway Agency.