US Bridges

110th Street over East Tarkio River

FairPosted for load

Page County, Iowa · 070371001 · Structure no. 000000000267910

Built
1977
48 years old
Condition
Fair
inspected November 2022
Type
Slab
Concrete Continuous
Length
104 ft
3 main spans
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

110th Street over East Tarkio River is a concrete continuous slab carrying 110th Street over East Tarkio River in Page County, Iowa. It was built in 1977, so it is 48 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, roughly 18% of them trucks, projected to reach 60 by 2042. The structure is 104 ft (31.7 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries110th Street
CrossesEast Tarkio River
Location070371001
RouteCounty Highway 0
StateIowa
Coordinates40.88641, -95.09412
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length104 ft (31.7 m)
Longest span39 ft (11.9 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic60 by 2042
Trucks18%
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 110th Street over East Tarkio River built?

It was built in 1977, making it 48 years old in 2025.

What condition is 110th Street over East Tarkio River 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 November 2022.

How much traffic does 110th Street over East Tarkio River carry?

About 60 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is 110th Street over East Tarkio River?

The structure is 104 ft (31.7 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns 110th Street over East Tarkio River?

It is owned by the County Highway Agency.